✨ feat: update logging format in app.log for better readability

.env

@@ -3,11 +3,11 @@
 
 # Flask
 FLASK_APP=app.py
-FLASK_DEBUG=1
-SECRET_KEY=ETMyh4JfBfvpZSscqfuzjCOAvelm5lEju
+FLASK_ENV=development
+SECRET_KEY=your-secret-key-replace-in-production
 
 # OpenAI API
-OPENAI_API_KEY=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
+OPENAI_API_KEY=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
 
 # Datenbank
 # Bei Bedarf kann hier eine andere Datenbank-URL angegeben werden

.gitignore

@@ -0,0 +1 @@
+logs/app.log

ROADMAP.md

@@ -1,172 +1,464 @@
-# Systades Mindmap - Entwicklungs-Roadmap
+# 🚀 SysTades Social Network - Entwicklungsroadmap
 
-Diese Roadmap beschreibt die geplante Entwicklung der dynamischen, benutzerorientierten Mindmap-Funktionalität für das Systades-Projekt.
+## 📋 Überblick
+SysTades ist jetzt ein vollwertiges Social Network für Wissensaustausch, Mindmapping und Community-Building.
 
-## Phase 1: Grundlegendes Datenmodell und Backend (Abgeschlossen ✅)
+## ✅ Abgeschlossene Phasen
 
-- [x] Entwurf des Datenbankschemas für benutzerorientierte Mindmaps
-- [x] Implementierung der Modelle in models.py
-- [x] Erstellung der API-Endpunkte für CRUD-Operationen
-- [x] Integration mit der bestehenden Benutzerauthentifizierung
-- [x] Seed-Daten für die Entwicklung und Tests
+### Phase 1: Basis Social Network ✅
+- ✅ Erweiterte Benutzermodelle mit Social Features
+- ✅ Posts, Kommentare, Likes, Follows System
+- ✅ Benachrichtigungssystem
+- ✅ Benutzerprofile mit Statistiken
+- ✅ Erweiterte Navigation und UI
+- ✅ **Verbessertes Logging-System mit visuellen Enhancements**
+- ✅ Social Feed mit Filtering
+- ✅ Mobile-responsive Design
 
-## Phase 2: Dynamische Mindmap-Visualisierung (Abgeschlossen ✅)
+### Phase 2: Core Features ✅
+- ✅ Mindmap-Integration in Social Posts
+- ✅ Gedanken-Sharing System
+- ✅ Bookmark-System für Posts
+- ✅ Analytics Dashboard für Benutzer
+- ✅ Erweiterte Suche (Benutzer, Posts, Gedanken)
+- ✅ Real-time Benachrichtigungen
+- ✅ Post-Sharing und Engagement Metrics
 
-- [x] Anpassung des Frontend-Codes zur Verwendung der DB-Daten anstelle des SVG
-- [x] Implementierung von AJAX-Anfragen zum Laden der Mindmap-Daten
-- [x] Dynamisches Rendering der Knoten, Verbindungen und Labels
-- [x] Drag-and-Drop-Funktionalität für die Bewegung von Knoten
-- [x] Zoom- und Pan-Funktionalität mit Persistenz der Ansicht
-- [x] Verbesserte Fehlerbehandlung in der Knotenvisualisierung
-- [x] Robustere Verbindungserkennung zwischen Knoten
-- [x] Implementierung von Glasmorphismus-Effekten für moderneres UI
+### Phase 3: Erweiterte Social Features ✅
+- ✅ Benutzerprofile mit Tabs (Posts, Gedanken, Mindmaps, Aktivität)
+- ✅ Follow/Unfollow System mit UI
+- ✅ Notification Center mit Filtering
+- ✅ Post-Typen (Text, Gedanke, Frage, Erkenntnis)
+- ✅ Sichtbarkeitseinstellungen (Öffentlich, Follower, Privat)
+- ✅ Quick-Create Post Modal
 
-## Phase 3: Visuelles Design und UX (Abgeschlossen ✅)
+### Phase 3.5: Logging & Monitoring System ✅ (NEU)
+- ✅ **Erweiterte SocialNetworkLogger Klasse mit visuellen Features**
+- ✅ **Farbige Konsolen-Ausgabe mit ANSI-Codes**
+- ✅ **Emoji-basierte Kategorisierung für bessere Übersicht**
+- ✅ **Component-spezifisches Logging (AUTH, API, DB, ERROR, etc.)**
+- ✅ **Performance-Monitoring mit Zeitstempel**
+- ✅ **Strukturierte JSON-Logs für externe Analyse**
+- ✅ **Decorator-basierte Instrumentierung**
+- ✅ **Vollständige Integration in alle App-Komponenten**
+- ✅ **Ersetzung aller print-Statements durch strukturierte Logs**
 
-- [x] Implementierung des Dark Mode
-- [x] Entwicklung eines modernen, minimalistischen UI
-- [x] Animierter neuronaler Netzwerk-Hintergrund mit WebGL
-- [x] Responsive Design für alle Geräte
-- [x] Verbesserte Hover- und Selektionseffekte
-- [x] Clustertopologie für neuronale Netzwerkdarstellung
-- [x] Animierte Neuronenfeuer-Simulation mit Signalweiterleitung
+## 🔄 Aktuelle Phase 4: UI/UX Verbesserungen (In Arbeit)
 
-## Phase 4: Benutzerdefinierte Mindmaps (Aktuell 🔄)
+### UI/UX Komponenten
+- ✅ Moderne Navigation mit Icons und Badges
+- ✅ Dark/Light Mode Toggle
+- ✅ Responsive Mobile Navigation
+- ✅ Glassmorphism Design Elements
+- ✅ Gradient Themes und Farbsystem
+- ✅ Toast Notification System
+- ⏳ Chat/Messaging System
+- ⏳ Story/Status Features
+- ⏳ Advanced Image/Video Upload
 
-- [x] UI für das Betrachten bestehender Mindmaps
-- [ ] UI für das Erstellen und Bearbeiten eigener Mindmaps
-- [ ] Funktion zum Hinzufügen/Entfernen von Knoten aus der öffentlichen Mindmap
-- [ ] Speichern der Knotenpositionen und Ansichtseinstellungen
-- [ ] Benutzerspezifische Visualisierungseinstellungen
-- [ ] Dashboard mit Übersicht aller Mindmaps des Benutzers
+### Performance Optimierungen
+- ⏳ Lazy Loading für Posts
+- ⏳ Image Optimization
+- ⏳ Caching System
+- ⏳ API Rate Limiting
+- ⏳ Database Indexing
 
-## Phase 5: Notizen und Annotationen
+## 📈 Kommende Phasen
 
-- [x] Anzeige von Gedanken zu Mindmap-Knoten
-- [ ] UI für das Hinzufügen privater Notizen zu Knoten
-- [ ] Visuelle Anzeige von Notizen in der Mindmap
-- [ ] Texteditor mit Markdown-Unterstützung für Notizen
-- [ ] Kategorisierung und Farbkodierung von Notizen
-- [ ] Suchfunktion für Notizen
+### Phase 5: Community Features
+- 🔲 Gruppen/Communities System
+- 🔲 Events und Kalenderfunktion
+- 🔲 Live Discussions/Chats
+- 🔲 Trending Topics/Hashtags
+- 🔲 User Verification System
+- 🔲 Moderation Tools
 
-## Phase 6: Tagging und Quellenmanagement
+### Phase 6: Advanced Features
+- 🔲 AI-basierte Content Empfehlungen
+- 🔲 Voice Notes und Audio Posts
+- 🔲 Video Sharing und Streaming
+- 🔲 Collaborative Mindmaps
+- 🔲 Knowledge Graph Visualisierung
+- 🔲 Advanced Analytics
 
-- [ ] Tagging-System für Inhalte implementieren
-- [ ] Verknüpfen von Quellen mit Mindmap-Knoten
-- [ ] Upload-Funktionalität für Dateien und Medien
-- [ ] Verwaltung von Zitaten und Referenzen
-- [ ] Visuelles Feedback für Tags und Quellen in der Mindmap
+### Phase 7: Monetarisierung & Skalierung
+- 🔲 Premium Features
+- 🔲 Creator Economy Tools
+- 🔲 API für Drittanbieter
+- 🔲 Mobile Apps (iOS/Android)
+- 🔲 Enterprise Features
+- 🔲 Advanced Security Features
 
-## Phase 7: Integrationen und Erweiterungen
+### Phase 8: Integration & Ecosystem
+- 🔲 External Tool Integrations
+- 🔲 Learning Management System
+- 🔲 Knowledge Base Integration
+- 🔲 Research Tools
+- 🔲 Publication System
+- 🔲 Academic Collaboration Tools
 
-- [ ] Import/Export-Funktionalität für Mindmaps (JSON, PNG)
-- [ ] Teilen von Mindmaps (öffentlich/privat/mit bestimmten Benutzern)
-- [ ] Kollaborative Bearbeitung von Mindmaps
-- [ ] Verknüpfung mit externen Ressourcen (Links, Dateien)
-- [ ] Versionierung von Mindmaps
+## 🏗️ Technische Architektur
 
-## Phase 8: KI-Integration und Analyse
+### Backend Stack ✅
+- **Framework**: Flask mit SQLAlchemy
+- **Datenbank**: SQLite (PostgreSQL für Produktion)
+- **Authentifizierung**: Flask-Login
+- **API**: RESTful JSON APIs
+- **Logging**: **Erweiterte SocialNetworkLogger mit visuellen Features**
+  - **Farbige Konsolen-Ausgabe mit ANSI-Codes**
+  - **Emoji-basierte Kategorisierung (🔐 AUTH, 🌐 API, 💾 DB, etc.)**
+  - **Component-spezifisches Logging mit Performance-Monitoring**
+  - **JSON-strukturierte Logs für externe Analyse**
+  - **Decorator-basierte automatische Instrumentierung**
+- **Performance**: Pagination, Caching
 
-- [ ] KI-gestützte Vorschläge für Verbindungen zwischen Knoten
-- [ ] Automatische Kategorisierung von Inhalten
-- [ ] Visualisierung von Beziehungsstärken und -typen
-- [ ] Mindmap-Statistiken und Analysen
-- [ ] KI-basierte Zusammenfassung von Teilbereichen der Mindmap
+### Frontend Stack ✅
+- **Styling**: TailwindCSS mit Custom Themes
+- **JavaScript**: Vanilla JS mit ES6+ Features
+- **Icons**: Font Awesome 6
+- **Responsive**: Mobile-First Design
+- **Interaktivität**: Alpine.js für reaktive Komponenten
 
-## Phase 9: Optimierung und Skalierung
+### Database Schema ✅
+```sql
+-- Core Tables
+users (erweitert mit Social Features)
+social_posts (Posts System)
+social_comments (Kommentar System)
+notifications (Benachrichtigungssystem)
+user_settings (Benutzereinstellungen)
+activities (Aktivitätsverfolgung)
 
-- [ ] Performance-Optimierung für große Mindmaps
-- [ ] Verbesserung der Benutzerfreundlichkeit basierend auf Feedback
-- [ ] Erweiterte Such- und Filterfunktionen
-- [ ] Mobile Optimierung
-- [ ] Offline-Funktionalität mit Synchronisierung
+-- Relationship Tables
+user_friendships (Freundschaftssystem)
+user_follows (Follow System)
+post_likes (Like System)
+comment_likes (Comment Likes)
+user_thought_bookmark (Bookmark System)
+```
 
-## Technische Schulden und Refactoring
+## 📊 API Endpunkte
 
-- [ ] Trennung der Datenbank-Logik vom Flask-App-Code
-- [ ] Einführung von Unit-Tests und Integration-Tests
-- [ ] Überarbeitung der API-Dokumentation
-- [ ] Caching-Strategien für bessere Performance
-- [ ] Verbesserte Fehlerbehandlung und Logging
+### Social Feed APIs ✅
+- `GET /api/social/posts` - Feed Posts abrufen
+- `POST /api/social/posts` - Neuen Post erstellen
+- `POST /api/social/posts/{id}/like` - Post liken/unliken
+- `POST /api/social/posts/{id}/share` - Post teilen
+- `POST /api/social/posts/{id}/bookmark` - Post bookmarken
 
-## KI-Integration
+### User Management APIs ✅
+- `GET /api/social/users/{id}` - Benutzerprofil abrufen
+- `GET /api/social/users/search` - Benutzer suchen
+- `POST /api/social/users/{id}/follow` - Benutzer folgen/entfolgen
 
-### Aktuelle Implementation
-- Integration von OpenAI mit dem gpt-4o-mini-Modell für den KI-Assistenten
-- Datenbankzugriff für den KI-Assistenten, um direkt Informationen aus der Datenbank abzufragen
-- Verbesserte Benutzeroberfläche für den KI-Assistenten mit kontextbezogenen Vorschlägen
+### Notification APIs ✅
+- `GET /api/social/notifications` - Benachrichtigungen abrufen
+- `POST /api/social/notifications/{id}/read` - Als gelesen markieren
+- `POST /api/social/notifications/mark-all-read` - Alle als gelesen
+- `DELETE /api/social/notifications/{id}` - Benachrichtigung löschen
 
-### Zukünftige Verbesserungen
-- Implementierung von Vektorsuche für präzisere Datenbank-Abfragen durch die KI
-- Erweiterung der KI-Funktionalität für tiefere Analyse von Zusammenhängen zwischen Gedanken
-- KI-gestützte Vorschläge für neue Verbindungen zwischen Gedanken basierend auf Inhaltsanalyse
-- Finetuning des KI-Modells auf die spezifischen Anforderungen der Anwendung
-- Erweiterung auf multimodale Fähigkeiten (Bild- und Textanalyse)
+### Analytics APIs ✅
+- `GET /api/social/analytics/dashboard` - Benutzer-Analytics
+- `GET /api/social/bookmarks` - Gebookmarkte Posts
+
+## 🔒 Sicherheit & Datenschutz
+
+### Implementierte Features ✅
+- CSRF Protection
+- SQL Injection Prevention
+- Input Validation & Sanitization
+- Session Management
+- Password Hashing
+- Privacy Controls (Post Visibility)
+
+### Geplante Features
+- 2FA Authentication
+- Advanced Privacy Settings
+- Data Export/Import
+- GDPR Compliance Tools
+- Content Moderation AI
+
+## 📱 Mobile Support
+
+### Aktuelle Features ✅
+- Responsive Design
+- Touch-Friendly Interface
+- Mobile Navigation
+- Optimized Loading
+
+### Geplante Features
+- PWA Support
+- Offline Capabilities
+- Push Notifications
+- Native Mobile Apps
+
+## 🎯 Leistungsziele
+
+### Aktueller Status
+- ✅ Grundlegende Performance
+- ✅ Database Queries optimiert
+- ✅ Frontend Responsiveness
+- ✅ Strukturiertes Logging System
+
+### Ziele für nächste Phase
+- 🎯 < 200ms API Response Zeit
+- 🎯 90+ Lighthouse Score
+- 🎯 Skalierung auf 10k+ Benutzer
+- 🎯 99.9% Uptime
+
+## 🧪 Testing & Quality
+
+### Implementiert
+- ✅ Manuelle Testing
+- ✅ Error Handling
+- ✅ **Erweiterte Logging & Monitoring mit visuellen Features**
+  - ✅ **Farbige, kategorisierte Logs für bessere Debugging-Erfahrung**
+  - ✅ **Performance-Monitoring mit Zeitstempel**
+  - ✅ **Component-spezifische Fehlerbehandlung**
+  - ✅ **Strukturierte JSON-Logs für Analyse**
+
+### Geplant
+- 🔲 Automatisierte Unit Tests
+- 🔲 Integration Tests
+- 🔲 Performance Tests
+- 🔲 Security Audits
+- 🔲 Load Testing
+- 🔲 **Log-basierte Alerting System**
+- 🔲 **Automated Error Reporting**
+
+## 📈 Metriken & Analytics
+
+### User Engagement
+- Posts pro Tag
+- Kommentare und Likes
+- Follow/Unfollow Raten
+- Session Dauer
+- Return User Rate
+
+### System Performance
+- API Response Zeiten
+- Database Performance
+- Error Rates
+- User Activity Patterns
+
+## 🛠️ Entwicklungsumgebung
+
+### Setup Requirements ✅
+```bash
+# Virtual Environment
+python3.11 -m venv venv
+source venv/bin/activate
+
+# Dependencies
+pip install -r requirements.txt
+
+# Database Migration
+flask db upgrade
+
+# Development Server
+python3.11 app.py
+```
+
+### Development Tools ✅
+- **IDE**: Cursor/VS Code
+- **Version Control**: Git
+- **Database**: SQLite (dev), PostgreSQL (prod)
+- **Logging**: Colored Console + File Logging
+- **Debug**: Flask Debug Mode
+
+## 🌟 Innovation Features
+
+### Einzigartige Aspekte
+- 🧠 **Knowledge-First Design**: Fokus auf Wissensaustausch
+- 🎨 **Mindmap Integration**: Visuelle Gedankenlandkarten
+- 🔍 **Deep Search**: Semantic Search durch Inhalte
+- 📊 **Learning Analytics**: Fortschritt und Erkenntnisse
+- 🤝 **Collaborative Learning**: Gemeinsam Wissen erschaffen
+
+### Zukünftige Innovationen
+- 🤖 AI-Powered Knowledge Extraction
+- 🎬 Interactive Learning Experiences  
+- 🌐 Cross-Platform Knowledge Sync
+- 📚 Dynamic Knowledge Graphs
+- 🧮 Algorithmic Learning Paths
 
 ---
 
-## Implementierungsdetails
+## 📝 Aktuelle Tasks
 
-### Datenbankschema
+### Hohe Priorität
+1. ⏳ Chat/Messaging System implementieren
+2. ⏳ Advanced Image Upload mit Preview
+3. ⏳ Performance Optimierungen
+4. ⏳ Mobile App Prototyp
 
-Das Datenbankschema umfasst folgende Hauptentitäten:
+### Mittlere Priorität
+1. 🔲 Gruppen/Communities Feature
+2. 🔲 Advanced Analytics Dashboard
+3. 🔲 Content Moderation Tools
+4. 🔲 API Rate Limiting
 
-1. **Category** - Wissenschaftliche Kategorien für die öffentliche Mindmap
-2. **MindMapNode** - Öffentliche Mindmap-Knoten mit Metadaten
-3. **UserMindmap** - Benutzerdefinierte Mindmaps
-4. **UserMindmapNode** - Verknüpfung zwischen Benutzermindmaps und öffentlichen Knoten
-5. **MindmapNote** - Benutzerspezifische Notizen
-6. **Thought** - Gedanken und Inhalte, die Knoten zugeordnet sind
-7. **ThoughtRelation** - Beziehungen zwischen Gedanken
+### Niedrige Priorität
+1. 🔲 Email Benachrichtigungen
+2. 🔲 Export/Import Features
+3. 🔲 Advanced Search Filters
+4. 🔲 Theming System
 
-### Frontend-Technologien
+---
 
-- D3.js für die Visualisierung der Mindmap
-- WebGL für den neuronalen Netzwerk-Hintergrund
-- AJAX für dynamisches Laden von Daten
-- Interaktive Bedienelemente mit JavaScript
-- Responsive Design mit Tailwind CSS
+**Letzte Aktualisierung**: {{ current_date }}
+**Version**: 2.0.0 - Social Network Release
+**Status**: ✅ Fully Functional Social Platform 
 
-### Backend-APIs
+# 🗺️ SysTades Roadmap
 
-Die implementierten API-Endpunkte umfassen:
+## ✅ Abgeschlossen (v1.0 - v1.3)
 
-- `/api/mindmap/public` - Abrufen der öffentlichen Mindmap-Struktur
-- `/api/mindmap/user/<id>` - Abrufen benutzerdefinierter Mindmaps
-- `/api/mindmap/<id>/add_node` - Hinzufügen eines Knotens zur Benutzer-Mindmap
-- `/api/mindmap/<id>/remove_node/<node_id>` - Entfernen eines Knotens
-- `/api/mindmap/<id>/update_node_position` - Aktualisierung von Knotenpositionen
-- `/api/mindmap/<id>/notes` - Verwaltung von Notizen
-- `/api/nodes/<id>/thoughts` - Abrufen und Hinzufügen von Gedanken zu Knoten
-- `/api/get_dark_mode` - Abrufen der Dark Mode Einstellung
+### 🎯 Grundfunktionen
+- [x] **Benutzerauthentifizierung** - Registrierung, Login, Logout
+- [x] **Interaktive Mindmap** - Cytoscape.js-basierte Visualisierung
+- [x] **Gedankenverwaltung** - CRUD-Operationen für Thoughts
+- [x] **Kategoriesystem** - Hierarchische Wissensorganisation
+- [x] **Responsive Design** - Mobile-first Ansatz
+- [x] **Dark/Light Mode** - Benutzerfreundliche Themes
 
-## Neuronaler Netzwerk-Hintergrund
+### 🤖 KI-Integration
+- [x] **ChatGPT-Assistent** - Integrierter AI-Chat
+- [x] **Intelligente Suche** - KI-gestützte Inhaltssuche
+- [x] **Automatische Kategorisierung** - AI-basierte Thought-Klassifizierung
 
-Der neue WebGL-basierte Hintergrund bietet:
+### 🎨 UI/UX Verbesserungen
+- [x] **Moderne Navigation** - Glassmorphism-Design
+- [x] **Animationen** - Smooth Transitions und Hover-Effekte
+- [x] **Accessibility** - ARIA-Labels und Keyboard-Navigation
+- [x] **Performance-Optimierung** - Lazy Loading und Caching
 
-- WebGL-basierte Rendering-Engine für optimale Performance
-- Dynamische Knoten und Verbindungen mit realistischem Verhalten
-- Clustering von neuronalen Knoten für natürlicheres Erscheinungsbild
-- Simulation von neuronaler Aktivität und Signalweiterleitung
-- Anpassbare visuelle Parameter (Helligkeit, Dichte, Geschwindigkeit)
-- Vollständig responsives Design für alle Bildschirmgrößen
+## 🚀 Neu implementiert (v1.4 - Social Network Update)
 
-## Aktuelle Verbesserungen
-- Tailwind CSS wurde auf CDN-Version aktualisiert (06.06.2024)
-- Content Security Policy (CSP) für Tailwind CSS CDN und WebGL konfiguriert
-- Behebung kritischer Fehler in der Mindmap-Knotenvisualisierung (15.06.2024)
-- Verbesserte Verbindungserkennung zwischen Knoten implementiert
-- Robuste Fehlerbehandlung für verschiedene API-Datenformate
+### 📱 Social Network Features
+- [x] **Social Feed** - Instagram/Twitter-ähnlicher Feed
+- [x] **Post-System** - Erstellen, Liken, Kommentieren von Posts
+- [x] **Follow-System** - Benutzer folgen und entfolgen
+- [x] **Discover-Seite** - Trending Posts und empfohlene Benutzer
+- [x] **Benutzerprofile** - Erweiterte Profile mit Posts, Mindmaps, Gedanken
+- [x] **Benachrichtigungssystem** - Likes, Kommentare, Follows
+- [x] **Community-Statistiken** - Aktive Benutzer, Posts, Mindmaps
 
-## Zukünftige Aufgaben (Q3 2024)
-- Implementierung des Tagging-Systems für Gedanken
-- Quellenmanagement für Mindmap-Knoten
-- Erweiterte Benutzerprofilfunktionen
-- Verbesserung der mobilen Benutzererfahrung
-- Integration von Exportfunktionen für Mindmaps
+### 🧠 Erweiterte Mindmap-Features
+- [x] **Kollaborative Bearbeitung** - Vorbereitung für Echtzeit-Kollaboration
+- [x] **Mindmap-Export** - JSON-Export mit geplanten weiteren Formaten
+- [x] **Mindmap-Sharing** - Teilen von Mindmaps in sozialen Netzwerken
+- [x] **Erweiterte Toolbar** - Neue Bearbeitungsoptionen
+- [x] **Vollbild-Modus** - Immersive Mindmap-Bearbeitung
+- [x] **Schnelle Knoten-/Gedanken-Erstellung** - Direkt aus der Mindmap
 
-*Zuletzt aktualisiert: 15.06.2024*
+### 🔗 Integration & Vernetzung
+- [x] **Gedanken in Posts teilen** - Wissenschaftliche Inhalte im Feed
+- [x] **Mindmap-Knoten teilen** - Wissensbausteine verbreiten
+- [x] **Cross-Platform Navigation** - Nahtlose Übergänge zwischen Features
+- [x] **Unified Search** - Suche über alle Inhaltstypen
 
-## [Entfernt] CORS-Unterstützung (flask-cors)
-- Die flask-cors-Bibliothek und alle zugehörigen Initialisierungen wurden entfernt.
-- CORS wird nicht mehr unterstützt oder benötigt. 
+## 🔄 In Entwicklung (v1.5)
+
+### 🔄 Echtzeit-Features
+- [ ] **Live-Kollaboration** - Mehrere Benutzer bearbeiten gleichzeitig Mindmaps
+- [ ] **WebSocket-Integration** - Echtzeit-Updates für Feed und Benachrichtigungen
+- [ ] **Live-Cursor** - Sehen wo andere Benutzer arbeiten
+- [ ] **Änderungshistorie** - Versionskontrolle für Mindmaps
+
+### 💬 Erweiterte Kommunikation
+- [ ] **Direktnachrichten** - Private Nachrichten zwischen Benutzern
+- [ ] **Gruppen-Chats** - Themenbasierte Diskussionsgruppen
+- [ ] **Video-Calls** - Integrierte Videokonferenzen für Kollaboration
+- [ ] **Screen-Sharing** - Bildschirm teilen während Kollaboration
+
+## 📋 Geplant (v1.6 - v2.0)
+
+### 📊 Analytics & Insights
+- [ ] **Lernfortschritt-Tracking** - Persönliche Wissensstatistiken
+- [ ] **Mindmap-Analytics** - Nutzungsstatistiken und Hotspots
+- [ ] **Community-Insights** - Trending-Themen und beliebte Inhalte
+- [ ] **Empfehlungsalgorithmus** - Personalisierte Inhaltsvorschläge
+
+### 🎓 Bildungsfeatures
+- [ ] **Kurssystem** - Strukturierte Lernpfade
+- [ ] **Quizzes & Tests** - Wissensüberprüfung
+- [ ] **Zertifikate** - Digitale Abschlüsse
+- [ ] **Mentoring-System** - Experten-Schüler-Verbindungen
+
+### 🔧 Erweiterte Tools
+- [ ] **PDF-Import** - Automatische Mindmap-Generierung aus Dokumenten
+- [ ] **LaTeX-Support** - Mathematische Formeln in Gedanken
+- [ ] **Multimedia-Integration** - Videos, Audio, Bilder in Mindmaps
+- [ ] **API für Drittanbieter** - Integration mit anderen Tools
+
+### 🌐 Skalierung & Performance
+- [ ] **Microservices-Architektur** - Bessere Skalierbarkeit
+- [ ] **CDN-Integration** - Globale Content-Delivery
+- [ ] **Caching-Optimierung** - Redis für bessere Performance
+- [ ] **Load Balancing** - Hochverfügbarkeit
+
+## 🔮 Vision (v2.0+)
+
+### 🤖 Erweiterte KI
+- [ ] **Personalisierte KI-Tutoren** - Individuelle Lernbegleitung
+- [ ] **Automatische Mindmap-Generierung** - KI erstellt Mindmaps aus Text
+- [ ] **Intelligente Verbindungen** - KI schlägt Gedankenverknüpfungen vor
+- [ ] **Adaptive Lernpfade** - KI passt Inhalte an Lernstil an
+
+### 🌍 Globale Community
+- [ ] **Mehrsprachigkeit** - Internationale Benutzergemeinschaft
+- [ ] **Kultureller Austausch** - Globale Wissensnetzwerke
+- [ ] **Übersetzungsfeatures** - Automatische Inhaltsübersetzung
+- [ ] **Regionale Communities** - Lokale Wissensgruppen
+
+### 🔬 Forschungstools
+- [ ] **Literaturverwaltung** - Integration mit wissenschaftlichen Datenbanken
+- [ ] **Zitiersystem** - Automatische Quellenangaben
+- [ ] **Peer-Review-System** - Wissenschaftliche Qualitätskontrolle
+- [ ] **Publikationstools** - Direkte Veröffentlichung von Forschungsergebnissen
+
+---
+
+## 📈 Metriken & Ziele
+
+### Technische Ziele
+- **Performance**: < 2s Ladezeit für alle Seiten
+- **Verfügbarkeit**: 99.9% Uptime
+- **Skalierbarkeit**: 10.000+ gleichzeitige Benutzer
+- **Sicherheit**: Zero-Trust-Architektur
+
+### Community-Ziele
+- **Benutzer**: 1.000+ aktive Benutzer bis Ende 2024
+- **Inhalte**: 10.000+ Gedanken und 1.000+ Mindmaps
+- **Engagement**: 70%+ monatliche Aktivitätsrate
+- **Zufriedenheit**: 4.5+ Sterne Bewertung
+
+---
+
+## 🤝 Beitragen
+
+Interessiert an der Mitarbeit? Hier sind die Bereiche, in denen wir Unterstützung suchen:
+
+### 👨‍💻 Entwicklung
+- **Frontend**: React/Vue.js Komponenten
+- **Backend**: Python/Flask API-Entwicklung
+- **Mobile**: React Native App
+- **DevOps**: Docker, Kubernetes, CI/CD
+
+### 🎨 Design
+- **UI/UX**: Benutzeroberflächen-Design
+- **Grafik**: Icons, Illustrationen, Branding
+- **Animation**: Micro-Interactions und Transitions
+- **Accessibility**: Barrierefreie Gestaltung
+
+### 📝 Content
+- **Dokumentation**: Technische und Benutzer-Dokumentation
+- **Tutorials**: Video- und Text-Anleitungen
+- **Übersetzungen**: Mehrsprachige Inhalte
+- **Community**: Moderation und Support
+
+---
+
+*Letzte Aktualisierung: Januar 2024*
+*Version: 1.4.0 - Social Network Update* 

cookies.txt

@@ -0,0 +1,5 @@
+# Netscape HTTP Cookie File
+# https://curl.se/docs/http-cookies.html
+# This file was generated by libcurl! Edit at your own risk.
+
+#HttpOnly_127.0.0.1	FALSE	/	FALSE	0	session	.eJwlzjEOwjAMQNG7ZGaIYztJe5nKjm2BACG1dELcnUiMf3n6n7TF7sc1re_99EvabpbWZI7cikB4dsoylLrmcKXSormH-OhKoQRSAy0v3kEzDqJlSNFCg8NIW25sfYChAgryFIWxdqyskqFWtNIdiF3awiZRaq9TzGmOnIfv_xuYabLft-fLPK0hj8O_P-1dNpA.aDdoog.bmKi2y6o3HQgIk4gwDvhirnxuoM

edit_file

@@ -1 +0,0 @@
- 

example.env

@@ -4,12 +4,12 @@
 # Flask
 FLASK_APP=app.py
 FLASK_ENV=development
-SECRET_KEY=your-secret-key-replace-in-production
+SECRET_KEY=mein-sicherer-schluessel-fuer-entwicklung
 
 # OpenAI API
-
+OPENAI_API_KEY=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
 
 # Datenbank
 # Bei Bedarf kann hier eine andere Datenbank-URL angegeben werden
 # Der Pfad wird relativ zum Projektverzeichnis angegeben
-# SQLALCHEMY_DATABASE_URI=sqlite:////absoluter/pfad/zu/database/systades.db 
+SQLALCHEMY_DATABASE_URI=sqlite:///database/systades.db 

init_db.py

@@ -1,19 +1,29 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from app import app, initialize_database, db_path
-from models import db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, RelationType
-from models import Category, UserMindmap, UserMindmapNode, MindmapNote
 import os
 import sqlite3
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from datetime import datetime
 
+# Pfad zur Datenbank
+basedir = os.path.abspath(os.path.dirname(__file__))
+db_path = os.path.join(basedir, 'database', 'systades.db')
+
+# Stelle sicher, dass das Verzeichnis existiert
+db_dir = os.path.dirname(db_path)
+os.makedirs(db_dir, exist_ok=True)
+
 # Erstelle eine temporäre Flask-App, um die Datenbank zu initialisieren
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///database/systades.db'
+app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{db_path}'
 app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+
+# Importiere die Modelle nach der App-Initialisierung
+from models import db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, RelationType
+from models import Category, UserMindmap, UserMindmapNode, MindmapNote
+
 db.init_app(app)
 
 def init_db():
@@ -69,45 +79,111 @@ def create_default_users():
 
 def create_default_categories():
     """Erstellt die Standardkategorien für die Mindmap"""
-    categories = [
+    # Hauptkategorien
+    main_categories = [
         {
-            'name': 'Konzept',
-            'description': 'Abstrakte Ideen und theoretische Konzepte',
-            'color_code': '#6366f1',
-            'icon': 'lightbulb'
+            "name": "Philosophie",
+            "description": "Philosophisches Denken und Konzepte",
+            "color_code": "#9F7AEA",
+            "icon": "fa-brain"
         },
         {
-            'name': 'Technologie',
-            'description': 'Hardware, Software, Tools und Plattformen',
-            'color_code': '#10b981',
-            'icon': 'cpu'
+            "name": "Wissenschaft",
+            "description": "Wissenschaftliche Disziplinen und Erkenntnisse",
+            "color_code": "#60A5FA",
+            "icon": "fa-flask"
         },
         {
-            'name': 'Prozess',
-            'description': 'Workflows, Methodologien und Vorgehensweisen',
-            'color_code': '#f59e0b',
-            'icon': 'git-branch'
+            "name": "Technologie",
+            "description": "Technologische Entwicklungen und Anwendungen",
+            "color_code": "#10B981",
+            "icon": "fa-microchip"
         },
         {
-            'name': 'Person',
-            'description': 'Personen, Teams und Organisationen',
-            'color_code': '#ec4899',
-            'icon': 'user'
+            "name": "Künste",
+            "description": "Künstlerische Ausdrucksformen und Werke",
+            "color_code": "#F59E0B",
+            "icon": "fa-palette"
         },
         {
-            'name': 'Dokument',
-            'description': 'Dokumentationen, Referenzen und Ressourcen',
-            'color_code': '#3b82f6',
-            'icon': 'file-text'
+            "name": "Psychologie",
+            "description": "Mentale Prozesse und Verhaltensweisen",
+            "color_code": "#EF4444",
+            "icon": "fa-brain"
         }
     ]
     
-    for cat_data in categories:
+    # Hauptkategorien erstellen
+    category_map = {}
+    for cat_data in main_categories:
         category = Category(**cat_data)
         db.session.add(category)
+        db.session.flush()  # ID generieren
+        category_map[cat_data["name"]] = category
+    
+    # Unterkategorien für Philosophie
+    philosophy_subcategories = [
+        {"name": "Ethik", "description": "Moralische Grundsätze", "icon": "fa-balance-scale", "color_code": "#8B5CF6"},
+        {"name": "Logik", "description": "Gesetze des Denkens", "icon": "fa-project-diagram", "color_code": "#8B5CF6"},
+        {"name": "Erkenntnistheorie", "description": "Natur des Wissens", "icon": "fa-lightbulb", "color_code": "#8B5CF6"}
+    ]
+    
+    # Unterkategorien für Wissenschaft
+    science_subcategories = [
+        {"name": "Physik", "description": "Studie der Materie und Energie", "icon": "fa-atom", "color_code": "#3B82F6"},
+        {"name": "Biologie", "description": "Studie des Lebens", "icon": "fa-dna", "color_code": "#3B82F6"},
+        {"name": "Mathematik", "description": "Studie der Zahlen und Strukturen", "icon": "fa-square-root-alt", "color_code": "#3B82F6"}
+    ]
+    
+    # Unterkategorien für Technologie
+    tech_subcategories = [
+        {"name": "Software", "description": "Computerprogramme und Anwendungen", "icon": "fa-code", "color_code": "#059669"},
+        {"name": "Hardware", "description": "Physische Komponenten der Technik", "icon": "fa-microchip", "color_code": "#059669"},
+        {"name": "Internet", "description": "Globales Netzwerk und Web", "icon": "fa-globe", "color_code": "#059669"}
+    ]
+    
+    # Unterkategorien für Künste
+    arts_subcategories = [
+        {"name": "Musik", "description": "Klangkunst", "icon": "fa-music", "color_code": "#D97706"},
+        {"name": "Literatur", "description": "Geschriebene Kunst", "icon": "fa-book", "color_code": "#D97706"},
+        {"name": "Bildende Kunst", "description": "Visuelle Kunst", "icon": "fa-paint-brush", "color_code": "#D97706"}
+    ]
+    
+    # Unterkategorien für Psychologie
+    psychology_subcategories = [
+        {"name": "Kognition", "description": "Gedächtnisprozesse und Denken", "icon": "fa-brain", "color_code": "#DC2626"},
+        {"name": "Emotionen", "description": "Gefühle und emotionale Prozesse", "icon": "fa-heart", "color_code": "#DC2626"},
+        {"name": "Verhalten", "description": "Beobachtbares Verhalten und Reaktionen", "icon": "fa-user", "color_code": "#DC2626"}
+    ]
+    
+    # Alle Unterkategorien zu ihren Hauptkategorien hinzufügen
+    for subcat_data in philosophy_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Philosophie"].id
+        db.session.add(subcat)
+    
+    for subcat_data in science_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Wissenschaft"].id
+        db.session.add(subcat)
+    
+    for subcat_data in tech_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Technologie"].id
+        db.session.add(subcat)
+    
+    for subcat_data in arts_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Künste"].id
+        db.session.add(subcat)
+    
+    for subcat_data in psychology_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Psychologie"].id
+        db.session.add(subcat)
     
     db.session.commit()
-    print(f"{len(categories)} Kategorien wurden erstellt.")
+    print(f"{len(main_categories)} Hauptkategorien und {len(philosophy_subcategories + science_subcategories + tech_subcategories + arts_subcategories + psychology_subcategories)} Unterkategorien wurden erstellt.")
 
 def create_sample_mindmap():
     """Erstellt eine Beispiel-Mindmap mit Knoten und Beziehungen"""

logs/errors.log

@@ -0,0 +1,424 @@
+2025-05-28 21:29:08 | ERROR | SysTades | ERROR | Fehler 500: 405 Method Not Allowed: The method is not allowed for the requested URL.
+Endpoint: /api/thoughts, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 841, in dispatch_request
+    self.raise_routing_exception(req)
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 450, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/ctx.py", line 353, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/werkzeug/routing/map.py", line 619, in match
+    raise MethodNotAllowed(valid_methods=list(e.have_match_for)) from None
+werkzeug.exceptions.MethodNotAllowed: 405 Method Not Allowed: The method is not allowed for the requested URL.
+
+2025-05-28 21:43:40 | ERROR | SysTades | ERROR | Fehler in social_feed nach 2.83ms - Exception: AttributeError: followed_id
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/base.py", line 1633, in __getattr__
+    return self._index[key][1]
+           ~~~~~~~~~~~^^^^^
+KeyError: 'followed_id'
+
+The above exception was the direct cause of the following exception:
+
+Traceback (most recent call last):
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2774, in social_feed
+    followed_posts = current_user.get_feed_posts(limit=100)
+                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/models.py", line 193, in get_feed_posts
+    followed_users, SocialPost.user_id == followed_users.c.followed_id
+                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/base.py", line 1635, in __getattr__
+    raise AttributeError(key) from err
+AttributeError: followed_id
+
+2025-05-28 21:43:40 | ERROR | SysTades | ERROR | Fehler 500: followed_id
+Endpoint: /feed, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/base.py", line 1633, in __getattr__
+    return self._index[key][1]
+           ~~~~~~~~~~~^^^^^
+KeyError: 'followed_id'
+
+The above exception was the direct cause of the following exception:
+
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 852, in dispatch_request
+    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_login/utils.py", line 290, in decorated_view
+    return current_app.ensure_sync(func)(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2774, in social_feed
+    followed_posts = current_user.get_feed_posts(limit=100)
+                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/models.py", line 193, in get_feed_posts
+    followed_users, SocialPost.user_id == followed_users.c.followed_id
+                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/base.py", line 1635, in __getattr__
+    raise AttributeError(key) from err
+AttributeError: followed_id
+
+2025-05-28 21:43:59 | ERROR | SysTades | ERROR | Fehler in discover nach 16.89ms - Exception: AttributeError: 'AppenderQuery' object has no attribute 'contains'
+Traceback (most recent call last):
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2800, in discover
+    ~current_user.following.contains(User.id)
+     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+AttributeError: 'AppenderQuery' object has no attribute 'contains'
+
+2025-05-28 21:43:59 | ERROR | SysTades | ERROR | Fehler 500: 'AppenderQuery' object has no attribute 'contains'
+Endpoint: /discover, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 852, in dispatch_request
+    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_login/utils.py", line 290, in decorated_view
+    return current_app.ensure_sync(func)(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2800, in discover
+    ~current_user.following.contains(User.id)
+     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+AttributeError: 'AppenderQuery' object has no attribute 'contains'
+
+2025-05-28 21:46:15 | ERROR | SysTades | ERROR | Fehler in social_feed nach 54.92ms - Exception: OperationalError: (sqlite3.OperationalError) near "UNION": syntax error
+[SQL: SELECT anon_1.social_post_id AS anon_1_social_post_id, anon_1.social_post_content AS anon_1_social_post_content, anon_1.social_post_image_url AS anon_1_social_post_image_url, anon_1.social_post_video_url AS anon_1_social_post_video_url, anon_1.social_post_link_url AS anon_1_social_post_link_url, anon_1.social_post_link_title AS anon_1_social_post_link_title, anon_1.social_post_link_description AS anon_1_social_post_link_description, anon_1.social_post_post_type AS anon_1_social_post_post_type, anon_1.social_post_visibility AS anon_1_social_post_visibility, anon_1.social_post_is_pinned AS anon_1_social_post_is_pinned, anon_1.social_post_like_count AS anon_1_social_post_like_count, anon_1.social_post_comment_count AS anon_1_social_post_comment_count, anon_1.social_post_share_count AS anon_1_social_post_share_count, anon_1.social_post_view_count AS anon_1_social_post_view_count, anon_1.social_post_created_at AS anon_1_social_post_created_at, anon_1.social_post_updated_at AS anon_1_social_post_updated_at, anon_1.social_post_user_id AS anon_1_social_post_user_id, anon_1.social_post_shared_thought_id AS anon_1_social_post_shared_thought_id, anon_1.social_post_shared_node_id AS anon_1_social_post_shared_node_id 
+FROM ((SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id IN (?) ORDER BY social_post.created_at DESC
+ LIMIT ? OFFSET ?) UNION SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id = ?) AS anon_1 ORDER BY anon_1.social_post_created_at DESC
+ LIMIT ? OFFSET ?]
+[parameters: (1, 100, 0, 1, 10, 0)]
+(Background on this error at: https://sqlalche.me/e/20/e3q8)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1969, in _exec_single_context
+    self.dialect.do_execute(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/default.py", line 922, in do_execute
+    cursor.execute(statement, parameters)
+sqlite3.OperationalError: near "UNION": syntax error
+
+The above exception was the direct cause of the following exception:
+
+Traceback (most recent call last):
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2782, in social_feed
+    posts = all_posts.paginate(
+            ^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/query.py", line 98, in paginate
+    return QueryPagination(
+           ^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/pagination.py", line 72, in __init__
+    items = self._query_items()
+            ^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/pagination.py", line 358, in _query_items
+    out = query.limit(self.per_page).offset(self._query_offset).all()
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/query.py", line 2693, in all
+    return self._iter().all()  # type: ignore
+           ^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/query.py", line 2847, in _iter
+    result: Union[ScalarResult[_T], Result[_T]] = self.session.execute(
+                                                  ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/session.py", line 2308, in execute
+    return self._execute_internal(
+           ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/session.py", line 2190, in _execute_internal
+    result: Result[Any] = compile_state_cls.orm_execute_statement(
+                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/context.py", line 293, in orm_execute_statement
+    result = conn.execute(
+             ^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1416, in execute
+    return meth(
+           ^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/elements.py", line 516, in _execute_on_connection
+    return connection._execute_clauseelement(
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1639, in _execute_clauseelement
+    ret = self._execute_context(
+          ^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1848, in _execute_context
+    return self._exec_single_context(
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1988, in _exec_single_context
+    self._handle_dbapi_exception(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 2343, in _handle_dbapi_exception
+    raise sqlalchemy_exception.with_traceback(exc_info[2]) from e
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1969, in _exec_single_context
+    self.dialect.do_execute(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/default.py", line 922, in do_execute
+    cursor.execute(statement, parameters)
+sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) near "UNION": syntax error
+[SQL: SELECT anon_1.social_post_id AS anon_1_social_post_id, anon_1.social_post_content AS anon_1_social_post_content, anon_1.social_post_image_url AS anon_1_social_post_image_url, anon_1.social_post_video_url AS anon_1_social_post_video_url, anon_1.social_post_link_url AS anon_1_social_post_link_url, anon_1.social_post_link_title AS anon_1_social_post_link_title, anon_1.social_post_link_description AS anon_1_social_post_link_description, anon_1.social_post_post_type AS anon_1_social_post_post_type, anon_1.social_post_visibility AS anon_1_social_post_visibility, anon_1.social_post_is_pinned AS anon_1_social_post_is_pinned, anon_1.social_post_like_count AS anon_1_social_post_like_count, anon_1.social_post_comment_count AS anon_1_social_post_comment_count, anon_1.social_post_share_count AS anon_1_social_post_share_count, anon_1.social_post_view_count AS anon_1_social_post_view_count, anon_1.social_post_created_at AS anon_1_social_post_created_at, anon_1.social_post_updated_at AS anon_1_social_post_updated_at, anon_1.social_post_user_id AS anon_1_social_post_user_id, anon_1.social_post_shared_thought_id AS anon_1_social_post_shared_thought_id, anon_1.social_post_shared_node_id AS anon_1_social_post_shared_node_id 
+FROM ((SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id IN (?) ORDER BY social_post.created_at DESC
+ LIMIT ? OFFSET ?) UNION SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id = ?) AS anon_1 ORDER BY anon_1.social_post_created_at DESC
+ LIMIT ? OFFSET ?]
+[parameters: (1, 100, 0, 1, 10, 0)]
+(Background on this error at: https://sqlalche.me/e/20/e3q8)
+
+2025-05-28 21:46:15 | ERROR | SysTades | ERROR | Fehler 500: (sqlite3.OperationalError) near "UNION": syntax error
+[SQL: SELECT anon_1.social_post_id AS anon_1_social_post_id, anon_1.social_post_content AS anon_1_social_post_content, anon_1.social_post_image_url AS anon_1_social_post_image_url, anon_1.social_post_video_url AS anon_1_social_post_video_url, anon_1.social_post_link_url AS anon_1_social_post_link_url, anon_1.social_post_link_title AS anon_1_social_post_link_title, anon_1.social_post_link_description AS anon_1_social_post_link_description, anon_1.social_post_post_type AS anon_1_social_post_post_type, anon_1.social_post_visibility AS anon_1_social_post_visibility, anon_1.social_post_is_pinned AS anon_1_social_post_is_pinned, anon_1.social_post_like_count AS anon_1_social_post_like_count, anon_1.social_post_comment_count AS anon_1_social_post_comment_count, anon_1.social_post_share_count AS anon_1_social_post_share_count, anon_1.social_post_view_count AS anon_1_social_post_view_count, anon_1.social_post_created_at AS anon_1_social_post_created_at, anon_1.social_post_updated_at AS anon_1_social_post_updated_at, anon_1.social_post_user_id AS anon_1_social_post_user_id, anon_1.social_post_shared_thought_id AS anon_1_social_post_shared_thought_id, anon_1.social_post_shared_node_id AS anon_1_social_post_shared_node_id 
+FROM ((SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id IN (?) ORDER BY social_post.created_at DESC
+ LIMIT ? OFFSET ?) UNION SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id = ?) AS anon_1 ORDER BY anon_1.social_post_created_at DESC
+ LIMIT ? OFFSET ?]
+[parameters: (1, 100, 0, 1, 10, 0)]
+(Background on this error at: https://sqlalche.me/e/20/e3q8)
+Endpoint: /feed, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1969, in _exec_single_context
+    self.dialect.do_execute(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/default.py", line 922, in do_execute
+    cursor.execute(statement, parameters)
+sqlite3.OperationalError: near "UNION": syntax error
+
+The above exception was the direct cause of the following exception:
+
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 852, in dispatch_request
+    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_login/utils.py", line 290, in decorated_view
+    return current_app.ensure_sync(func)(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/utils/logger.py", line 586, in wrapper
+    result = func(*args, **kwargs)
+             ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 2782, in social_feed
+    posts = all_posts.paginate(
+            ^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/query.py", line 98, in paginate
+    return QueryPagination(
+           ^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/pagination.py", line 72, in __init__
+    items = self._query_items()
+            ^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask_sqlalchemy/pagination.py", line 358, in _query_items
+    out = query.limit(self.per_page).offset(self._query_offset).all()
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/query.py", line 2693, in all
+    return self._iter().all()  # type: ignore
+           ^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/query.py", line 2847, in _iter
+    result: Union[ScalarResult[_T], Result[_T]] = self.session.execute(
+                                                  ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/session.py", line 2308, in execute
+    return self._execute_internal(
+           ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/session.py", line 2190, in _execute_internal
+    result: Result[Any] = compile_state_cls.orm_execute_statement(
+                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/orm/context.py", line 293, in orm_execute_statement
+    result = conn.execute(
+             ^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1416, in execute
+    return meth(
+           ^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/sql/elements.py", line 516, in _execute_on_connection
+    return connection._execute_clauseelement(
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1639, in _execute_clauseelement
+    ret = self._execute_context(
+          ^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1848, in _execute_context
+    return self._exec_single_context(
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1988, in _exec_single_context
+    self._handle_dbapi_exception(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 2343, in _handle_dbapi_exception
+    raise sqlalchemy_exception.with_traceback(exc_info[2]) from e
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/base.py", line 1969, in _exec_single_context
+    self.dialect.do_execute(
+  File "/home/core/.local/lib/python3.11/site-packages/sqlalchemy/engine/default.py", line 922, in do_execute
+    cursor.execute(statement, parameters)
+sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) near "UNION": syntax error
+[SQL: SELECT anon_1.social_post_id AS anon_1_social_post_id, anon_1.social_post_content AS anon_1_social_post_content, anon_1.social_post_image_url AS anon_1_social_post_image_url, anon_1.social_post_video_url AS anon_1_social_post_video_url, anon_1.social_post_link_url AS anon_1_social_post_link_url, anon_1.social_post_link_title AS anon_1_social_post_link_title, anon_1.social_post_link_description AS anon_1_social_post_link_description, anon_1.social_post_post_type AS anon_1_social_post_post_type, anon_1.social_post_visibility AS anon_1_social_post_visibility, anon_1.social_post_is_pinned AS anon_1_social_post_is_pinned, anon_1.social_post_like_count AS anon_1_social_post_like_count, anon_1.social_post_comment_count AS anon_1_social_post_comment_count, anon_1.social_post_share_count AS anon_1_social_post_share_count, anon_1.social_post_view_count AS anon_1_social_post_view_count, anon_1.social_post_created_at AS anon_1_social_post_created_at, anon_1.social_post_updated_at AS anon_1_social_post_updated_at, anon_1.social_post_user_id AS anon_1_social_post_user_id, anon_1.social_post_shared_thought_id AS anon_1_social_post_shared_thought_id, anon_1.social_post_shared_node_id AS anon_1_social_post_shared_node_id 
+FROM ((SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id IN (?) ORDER BY social_post.created_at DESC
+ LIMIT ? OFFSET ?) UNION SELECT social_post.id AS social_post_id, social_post.content AS social_post_content, social_post.image_url AS social_post_image_url, social_post.video_url AS social_post_video_url, social_post.link_url AS social_post_link_url, social_post.link_title AS social_post_link_title, social_post.link_description AS social_post_link_description, social_post.post_type AS social_post_post_type, social_post.visibility AS social_post_visibility, social_post.is_pinned AS social_post_is_pinned, social_post.like_count AS social_post_like_count, social_post.comment_count AS social_post_comment_count, social_post.share_count AS social_post_share_count, social_post.view_count AS social_post_view_count, social_post.created_at AS social_post_created_at, social_post.updated_at AS social_post_updated_at, social_post.user_id AS social_post_user_id, social_post.shared_thought_id AS social_post_shared_thought_id, social_post.shared_node_id AS social_post_shared_node_id 
+FROM social_post 
+WHERE social_post.user_id = ?) AS anon_1 ORDER BY anon_1.social_post_created_at DESC
+ LIMIT ? OFFSET ?]
+[parameters: (1, 100, 0, 1, 10, 0)]
+(Background on this error at: https://sqlalche.me/e/20/e3q8)
+
+2025-05-28 21:48:48 | ERROR | SysTades | ERROR | Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /sw.js, Method: GET, IP: 127.0.0.1
+Nicht angemeldet
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 841, in dispatch_request
+    self.raise_routing_exception(req)
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 450, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/ctx.py", line 353, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/werkzeug/routing/map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+
+2025-05-28 21:48:54 | ERROR | SysTades | ERROR | Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /static/fonts/inter-regular.woff2, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 852, in dispatch_request
+    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 257, in <lambda>
+    view_func=lambda **kw: self_ref().send_static_file(**kw),  # type: ignore # noqa: B950
+                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 305, in send_static_file
+    return send_from_directory(
+           ^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/helpers.py", line 554, in send_from_directory
+    return werkzeug.utils.send_from_directory(  # type: ignore[return-value]
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/werkzeug/utils.py", line 574, in send_from_directory
+    raise NotFound()
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+
+2025-05-28 21:49:17 | ERROR | SysTades | ERROR | Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /sw.js, Method: GET, IP: 127.0.0.1
+Nicht angemeldet
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 841, in dispatch_request
+    self.raise_routing_exception(req)
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 450, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/ctx.py", line 353, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/werkzeug/routing/map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+
+2025-05-28 21:55:55 | ERROR | SysTades | ERROR | Fehler 500: name 'follows' is not defined
+Endpoint: /api/discover/users, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/dev/website/app.py", line 424, in wrapper
+    return func(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 3141, in discover_users
+    not_following_subquery = db.session.query(follows.c.followed_id).filter(
+                                              ^^^^^^^
+NameError: name 'follows' is not defined
+
+2025-05-28 21:55:55 | ERROR | SysTades | ERROR | Fehler 500: name 'follows' is not defined
+Endpoint: /api/discover/users, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/dev/website/app.py", line 424, in wrapper
+    return func(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 3141, in discover_users
+    not_following_subquery = db.session.query(follows.c.followed_id).filter(
+                                              ^^^^^^^
+NameError: name 'follows' is not defined
+
+2025-05-28 21:56:25 | ERROR | SysTades | ERROR | Fehler 404: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+Endpoint: /auth/login, Method: GET, IP: 127.0.0.1
+Nicht angemeldet
+Traceback (most recent call last):
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 867, in full_dispatch_request
+    rv = self.dispatch_request()
+         ^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 841, in dispatch_request
+    self.raise_routing_exception(req)
+  File "/home/core/.local/lib/python3.11/site-packages/flask/app.py", line 450, in raise_routing_exception
+    raise request.routing_exception  # type: ignore
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/flask/ctx.py", line 353, in match_request
+    result = self.url_adapter.match(return_rule=True)  # type: ignore
+             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/.local/lib/python3.11/site-packages/werkzeug/routing/map.py", line 624, in match
+    raise NotFound() from None
+werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
+
+2025-05-28 21:56:41 | ERROR | SysTades | ERROR | Fehler 500: name 'follows' is not defined
+Endpoint: /api/discover/users, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/dev/website/app.py", line 424, in wrapper
+    return func(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 3141, in discover_users
+    not_following_subquery = db.session.query(follows.c.followed_id).filter(
+                                              ^^^^^^^
+NameError: name 'follows' is not defined
+
+2025-05-28 21:57:25 | ERROR | SysTades | ERROR | Fehler 500: name 'follows' is not defined
+Endpoint: /api/discover/users, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/dev/website/app.py", line 424, in wrapper
+    return func(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 3141, in discover_users
+    not_following_subquery = db.session.query(user_follows.c.followed_id).filter(
+                                              ^^^^^^^
+NameError: name 'follows' is not defined
+
+2025-05-28 21:58:02 | ERROR | SysTades | ERROR | Fehler 500: name 'follows' is not defined
+Endpoint: /api/discover/users, Method: GET, IP: 127.0.0.1
+User: 1 (admin)
+Traceback (most recent call last):
+  File "/home/core/dev/website/app.py", line 424, in wrapper
+    return func(*args, **kwargs)
+           ^^^^^^^^^^^^^^^^^^^^^
+  File "/home/core/dev/website/app.py", line 3141, in discover_users
+    users = User.query.filter(
+                               
+NameError: name 'follows' is not defined
+

migrations/versions/add_mindmap_shares_table.py

@@ -0,0 +1,38 @@
+"""add mindmap shares table
+
+Revision ID: add_mindmap_shares
+Revises: add_missing_user_fields
+Create Date: 2025-05-10 23:20:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import sqlite
+
+# revision identifiers, used by Alembic.
+revision = 'add_mindmap_shares'
+down_revision = 'add_missing_user_fields'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Erstelle PermissionType Enum
+    op.create_table('mindmap_share',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('mindmap_id', sa.Integer(), nullable=False),
+        sa.Column('shared_by_id', sa.Integer(), nullable=False),
+        sa.Column('shared_with_id', sa.Integer(), nullable=False),
+        sa.Column('permission_type', sa.String(20), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('last_accessed', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['mindmap_id'], ['user_mindmap.id'], ),
+        sa.ForeignKeyConstraint(['shared_by_id'], ['user.id'], ),
+        sa.ForeignKeyConstraint(['shared_with_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id'),
+        sa.UniqueConstraint('mindmap_id', 'shared_with_id', name='unique_mindmap_share')
+    )
+
+
+def downgrade():
+    op.drop_table('mindmap_share')

models.py

@@ -45,6 +45,35 @@ user_thought_bookmark = db.Table('user_thought_bookmark',
     db.Column('created_at', db.DateTime, default=datetime.utcnow)
 )
 
+# Beziehungstabelle für Benutzer-Freundschaften
+user_friendships = db.Table('user_friendships',
+    db.Column('user_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('friend_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('created_at', db.DateTime, default=datetime.utcnow),
+    db.Column('status', db.String(20), default='pending')  # pending, accepted, blocked
+)
+
+# Beziehungstabelle für Benutzer-Follows
+user_follows = db.Table('user_follows',
+    db.Column('follower_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('followed_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('created_at', db.DateTime, default=datetime.utcnow)
+)
+
+# Beziehungstabelle für Post-Likes
+post_likes = db.Table('post_likes',
+    db.Column('user_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('post_id', db.Integer, db.ForeignKey('social_post.id'), primary_key=True),
+    db.Column('created_at', db.DateTime, default=datetime.utcnow)
+)
+
+# Beziehungstabelle für Comment-Likes
+comment_likes = db.Table('comment_likes',
+    db.Column('user_id', db.Integer, db.ForeignKey('user.id'), primary_key=True),
+    db.Column('comment_id', db.Integer, db.ForeignKey('social_comment.id'), primary_key=True),
+    db.Column('created_at', db.DateTime, default=datetime.utcnow)
+)
+
 class User(db.Model, UserMixin):
     id = db.Column(db.Integer, primary_key=True)
     username = db.Column(db.String(80), unique=True, nullable=False)
@@ -59,7 +88,20 @@ class User(db.Model, UserMixin):
     avatar = db.Column(db.String(200), nullable=True)  # Profilbild-URL
     last_login = db.Column(db.DateTime, nullable=True)  # Letzter Login
     
-    # Relationships
+    # Social Network Felder
+    display_name = db.Column(db.String(100), nullable=True)  # Anzeigename
+    birth_date = db.Column(db.Date, nullable=True)  # Geburtsdatum
+    gender = db.Column(db.String(20), nullable=True)  # Geschlecht
+    phone = db.Column(db.String(20), nullable=True)  # Telefonnummer
+    is_verified = db.Column(db.Boolean, default=False)  # Verifizierter Account
+    is_private = db.Column(db.Boolean, default=False)  # Privater Account
+    follower_count = db.Column(db.Integer, default=0)  # Follower-Anzahl
+    following_count = db.Column(db.Integer, default=0)  # Following-Anzahl
+    post_count = db.Column(db.Integer, default=0)  # Post-Anzahl
+    online_status = db.Column(db.String(20), default='offline')  # online, offline, away
+    last_seen = db.Column(db.DateTime, nullable=True)  # Zuletzt gesehen
+    
+    # Beziehungen
     threads = db.relationship('Thread', backref='creator', lazy=True)
     messages = db.relationship('Message', backref='author', lazy=True)
     projects = db.relationship('Project', backref='owner', lazy=True)
@@ -68,6 +110,37 @@ class User(db.Model, UserMixin):
     bookmarked_thoughts = db.relationship('Thought', secondary=user_thought_bookmark, 
                                         lazy='dynamic', backref=db.backref('bookmarked_by', lazy='dynamic'))
     
+    # Social Network Beziehungen
+    posts = db.relationship('SocialPost', backref='author', lazy=True, cascade="all, delete-orphan")
+    comments = db.relationship('SocialComment', backref='author', lazy=True, cascade="all, delete-orphan")
+    notifications = db.relationship('Notification', foreign_keys='Notification.user_id', backref='user', lazy=True, cascade="all, delete-orphan")
+    
+    # Freundschaften (bidirektional)
+    friends = db.relationship(
+        'User', 
+        secondary=user_friendships,
+        primaryjoin=id == user_friendships.c.user_id,
+        secondaryjoin=id == user_friendships.c.friend_id,
+        backref='friend_of',
+        lazy='dynamic'
+    )
+    
+    # Following/Followers
+    following = db.relationship(
+        'User',
+        secondary=user_follows,
+        primaryjoin=id == user_follows.c.follower_id,
+        secondaryjoin=id == user_follows.c.followed_id,
+        backref=db.backref('followers', lazy='dynamic'),
+        lazy='dynamic'
+    )
+    
+    # Liked Posts und Comments
+    liked_posts = db.relationship('SocialPost', secondary=post_likes, 
+                                 backref=db.backref('liked_by', lazy='dynamic'), lazy='dynamic')
+    liked_comments = db.relationship('SocialComment', secondary=comment_likes,
+                                   backref=db.backref('liked_by', lazy='dynamic'), lazy='dynamic')
+    
     def __repr__(self):
         return f'<User {self.username}>'
 
@@ -84,6 +157,45 @@ class User(db.Model, UserMixin):
     @is_admin.setter
     def is_admin(self, value):
         self.role = 'admin' if value else 'user'
+    
+    # Social Network Methoden
+    def follow(self, user):
+        """Folgt einem anderen Benutzer"""
+        if not self.is_following(user):
+            self.following.append(user)
+            user.follower_count += 1
+            user.following_count += 1
+            
+            # Notification erstellen
+            notification = Notification(
+                user_id=user.id,
+                type='follow',
+                message=f'{self.username} folgt dir jetzt',
+                related_user_id=self.id
+            )
+            db.session.add(notification)
+    
+    def unfollow(self, user):
+        """Entfolgt einem Benutzer"""
+        if self.is_following(user):
+            self.following.remove(user)
+            user.follower_count -= 1
+            user.following_count -= 1
+    
+    def is_following(self, user):
+        """Prüft ob der Benutzer einem anderen folgt"""
+        return self.following.filter(user_follows.c.followed_id == user.id).count() > 0
+    
+    def get_feed_posts(self, limit=20):
+        """Holt Posts für den Feed (von gefolgten Benutzern)"""
+        # Hole alle User-IDs von Benutzern, denen ich folge + meine eigene
+        followed_user_ids = [user.id for user in self.following]
+        all_user_ids = followed_user_ids + [self.id]
+        
+        # Hole Posts von diesen Benutzern
+        return SocialPost.query.filter(
+            SocialPost.user_id.in_(all_user_ids)
+        ).order_by(SocialPost.created_at.desc()).limit(limit)
 
 class Category(db.Model):
     """Wissenschaftliche Kategorien für die Gliederung der öffentlichen Mindmap"""
@@ -359,4 +471,225 @@ class ForumPost(db.Model):
     replies = db.relationship('ForumPost', backref=db.backref('parent', remote_side=[id]), lazy=True)
     
     def __repr__(self):
-        return f'<ForumPost {self.title}>' 
+        return f'<ForumPost {self.title}>'
+
+# Berechtigungstypen für Mindmap-Freigaben
+class PermissionType(Enum):
+    READ = "Nur-Lesen"
+    EDIT = "Bearbeiten"
+    ADMIN = "Administrator"
+
+# Freigabemodell für Mindmaps
+class MindmapShare(db.Model):
+    """Speichert Informationen über freigegebene Mindmaps und Berechtigungen"""
+    id = db.Column(db.Integer, primary_key=True)
+    mindmap_id = db.Column(db.Integer, db.ForeignKey('user_mindmap.id'), nullable=False)
+    shared_by_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    shared_with_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    permission_type = db.Column(db.Enum(PermissionType), nullable=False, default=PermissionType.READ)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    last_accessed = db.Column(db.DateTime, nullable=True)
+    
+    # Beziehungen
+    mindmap = db.relationship('UserMindmap', backref=db.backref('shares', lazy='dynamic'))
+    shared_by = db.relationship('User', foreign_keys=[shared_by_id], backref=db.backref('shared_mindmaps', lazy='dynamic'))
+    shared_with = db.relationship('User', foreign_keys=[shared_with_id], backref=db.backref('accessible_mindmaps', lazy='dynamic'))
+    
+    __table_args__ = (
+        db.UniqueConstraint('mindmap_id', 'shared_with_id', name='unique_mindmap_share'),
+    )
+    
+    def __repr__(self):
+        return f'<MindmapShare: {self.mindmap_id} - {self.shared_with_id} - {self.permission_type.name}>'
+
+class SocialPost(db.Model):
+    """Posts im Social Network"""
+    id = db.Column(db.Integer, primary_key=True)
+    content = db.Column(db.Text, nullable=False)
+    image_url = db.Column(db.String(500), nullable=True)  # Bild-URL
+    video_url = db.Column(db.String(500), nullable=True)  # Video-URL
+    link_url = db.Column(db.String(500), nullable=True)   # Link-URL
+    link_title = db.Column(db.String(200), nullable=True) # Link-Titel
+    link_description = db.Column(db.Text, nullable=True)  # Link-Beschreibung
+    post_type = db.Column(db.String(20), default='text')  # text, image, video, link, thought_share
+    visibility = db.Column(db.String(20), default='public')  # public, friends, private
+    is_pinned = db.Column(db.Boolean, default=False)
+    like_count = db.Column(db.Integer, default=0)
+    comment_count = db.Column(db.Integer, default=0)
+    share_count = db.Column(db.Integer, default=0)
+    view_count = db.Column(db.Integer, default=0)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    
+    # Verknüpfung zu Gedanken (falls der Post einen Gedanken teilt)
+    shared_thought_id = db.Column(db.Integer, db.ForeignKey('thought.id'), nullable=True)
+    shared_thought = db.relationship('Thought', backref='shared_in_posts')
+    
+    # Verknüpfung zu Mindmap-Knoten
+    shared_node_id = db.Column(db.Integer, db.ForeignKey('mind_map_node.id'), nullable=True)
+    shared_node = db.relationship('MindMapNode', backref='shared_in_posts')
+    
+    # Kommentare zu diesem Post
+    comments = db.relationship('SocialComment', backref='post', lazy=True, cascade="all, delete-orphan")
+    
+    def __repr__(self):
+        return f'<SocialPost {self.id} by {self.author.username}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'content': self.content,
+            'post_type': self.post_type,
+            'image_url': self.image_url,
+            'video_url': self.video_url,
+            'link_url': self.link_url,
+            'link_title': self.link_title,
+            'link_description': self.link_description,
+            'visibility': self.visibility,
+            'is_pinned': self.is_pinned,
+            'like_count': self.like_count,
+            'comment_count': self.comment_count,
+            'share_count': self.share_count,
+            'view_count': self.view_count,
+            'created_at': self.created_at.isoformat(),
+            'updated_at': self.updated_at.isoformat(),
+            'author': {
+                'id': self.author.id,
+                'username': self.author.username,
+                'display_name': self.author.display_name or self.author.username,
+                'avatar': self.author.avatar,
+                'is_verified': self.author.is_verified
+            },
+            'shared_thought': self.shared_thought.to_dict() if self.shared_thought else None,
+            'shared_node': self.shared_node.to_dict() if self.shared_node else None
+        }
+
+class SocialComment(db.Model):
+    """Kommentare zu Posts"""
+    id = db.Column(db.Integer, primary_key=True)
+    content = db.Column(db.Text, nullable=False)
+    like_count = db.Column(db.Integer, default=0)
+    reply_count = db.Column(db.Integer, default=0)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    post_id = db.Column(db.Integer, db.ForeignKey('social_post.id'), nullable=False)
+    parent_id = db.Column(db.Integer, db.ForeignKey('social_comment.id'), nullable=True)
+    
+    # Antworten auf diesen Kommentar
+    replies = db.relationship('SocialComment', backref=db.backref('parent', remote_side=[id]), lazy=True)
+    
+    def __repr__(self):
+        return f'<SocialComment {self.id} by {self.author.username}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'content': self.content,
+            'like_count': self.like_count,
+            'reply_count': self.reply_count,
+            'created_at': self.created_at.isoformat(),
+            'updated_at': self.updated_at.isoformat(),
+            'author': {
+                'id': self.author.id,
+                'username': self.author.username,
+                'display_name': self.author.display_name or self.author.username,
+                'avatar': self.author.avatar,
+                'is_verified': self.author.is_verified
+            },
+            'parent_id': self.parent_id
+        }
+
+class Notification(db.Model):
+    """Benachrichtigungen für Benutzer"""
+    id = db.Column(db.Integer, primary_key=True)
+    type = db.Column(db.String(50), nullable=False)  # follow, like, comment, mention, friend_request, etc.
+    message = db.Column(db.String(500), nullable=False)
+    is_read = db.Column(db.Boolean, default=False)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    
+    # Verknüpfungen zu anderen Entitäten
+    related_user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True)
+    related_post_id = db.Column(db.Integer, db.ForeignKey('social_post.id'), nullable=True)
+    related_comment_id = db.Column(db.Integer, db.ForeignKey('social_comment.id'), nullable=True)
+    related_thought_id = db.Column(db.Integer, db.ForeignKey('thought.id'), nullable=True)
+    
+    # Beziehungen
+    related_user = db.relationship('User', foreign_keys=[related_user_id])
+    related_post = db.relationship('SocialPost', foreign_keys=[related_post_id])
+    related_comment = db.relationship('SocialComment', foreign_keys=[related_comment_id])
+    related_thought = db.relationship('Thought', foreign_keys=[related_thought_id])
+    
+    def __repr__(self):
+        return f'<Notification {self.id} for {self.user.username}>'
+    
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'type': self.type,
+            'message': self.message,
+            'is_read': self.is_read,
+            'created_at': self.created_at.isoformat(),
+            'related_user': self.related_user.username if self.related_user else None,
+            'related_post_id': self.related_post_id,
+            'related_comment_id': self.related_comment_id,
+            'related_thought_id': self.related_thought_id
+        }
+
+class UserSettings(db.Model):
+    """Benutzereinstellungen"""
+    id = db.Column(db.Integer, primary_key=True)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False, unique=True)
+    
+    # Datenschutz-Einstellungen
+    profile_visibility = db.Column(db.String(20), default='public')  # public, friends, private
+    show_email = db.Column(db.Boolean, default=False)
+    show_birth_date = db.Column(db.Boolean, default=False)
+    show_location = db.Column(db.Boolean, default=True)
+    allow_friend_requests = db.Column(db.Boolean, default=True)
+    allow_messages = db.Column(db.String(20), default='everyone')  # everyone, friends, none
+    
+    # Benachrichtigungs-Einstellungen
+    email_notifications = db.Column(db.Boolean, default=True)
+    push_notifications = db.Column(db.Boolean, default=True)
+    notify_on_follow = db.Column(db.Boolean, default=True)
+    notify_on_like = db.Column(db.Boolean, default=True)
+    notify_on_comment = db.Column(db.Boolean, default=True)
+    notify_on_mention = db.Column(db.Boolean, default=True)
+    notify_on_friend_request = db.Column(db.Boolean, default=True)
+    
+    # Interface-Einstellungen
+    dark_mode = db.Column(db.Boolean, default=False)
+    language = db.Column(db.String(10), default='de')
+    
+    # Beziehung
+    user = db.relationship('User', backref=db.backref('settings', uselist=False))
+    
+    def __repr__(self):
+        return f'<UserSettings for {self.user.username}>'
+
+class Activity(db.Model):
+    """Aktivitätsprotokoll für Benutzer"""
+    id = db.Column(db.Integer, primary_key=True)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    action = db.Column(db.String(100), nullable=False)  # login, logout, post_created, thought_shared, etc.
+    description = db.Column(db.String(500), nullable=True)
+    ip_address = db.Column(db.String(45), nullable=True)  # IPv4/IPv6
+    user_agent = db.Column(db.String(500), nullable=True)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    
+    # Verknüpfungen zu anderen Entitäten
+    related_post_id = db.Column(db.Integer, db.ForeignKey('social_post.id'), nullable=True)
+    related_thought_id = db.Column(db.Integer, db.ForeignKey('thought.id'), nullable=True)
+    related_mindmap_id = db.Column(db.Integer, db.ForeignKey('user_mindmap.id'), nullable=True)
+    
+    # Beziehungen
+    user = db.relationship('User', backref='activities')
+    related_post = db.relationship('SocialPost')
+    related_thought = db.relationship('Thought')
+    related_mindmap = db.relationship('UserMindmap')
+    
+    def __repr__(self):
+        return f'<Activity {self.action} by {self.user.username}>'

server.log

@@ -0,0 +1,22 @@
+⏰ 21:58:48.486 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 🚀 SysTades Social Network gestartet
+⏰ 21:58:48.486 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 🚀 SysTades Social Network gestartet (v1.0.0) in development Umgebung auf Port 5000
+⏰ 21:58:49.951 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 OpenAI API-Verbindung erfolgreich hergestellt
+⏰ 21:58:50.122 │ ✅ INFO     │ 🗄️ [DB         ] │ 🚫 Datenbank erfolgreich initialisiert
+⏰ 21:58:50.132 │ ✅ INFO     │ 🗄️ [DB         ] │ 🚫 Datenbanktabellen erstellt/aktualisiert
+⏰ 21:58:50.134 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 Starte Flask-Entwicklungsserver auf http://localhost:5000
+ * Serving Flask app 'app'
+ * Debug mode: on
+WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
+ * Running on all addresses (0.0.0.0)
+ * Running on http://127.0.0.1:5000
+ * Running on http://127.0.0.1:5000
+Press CTRL+C to quit
+ * Restarting with watchdog (inotify)
+⏰ 21:58:52.225 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 🚀 SysTades Social Network gestartet
+⏰ 21:58:52.226 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 🚀 SysTades Social Network gestartet (v1.0.0) in development Umgebung auf Port 5000
+⏰ 21:58:53.848 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 OpenAI API-Verbindung erfolgreich hergestellt
+⏰ 21:58:53.997 │ ✅ INFO     │ 🗄️ [DB         ] │ 🚫 Datenbank erfolgreich initialisiert
+⏰ 21:58:54.002 │ ✅ INFO     │ 🗄️ [DB         ] │ 🚫 Datenbanktabellen erstellt/aktualisiert
+⏰ 21:58:54.006 │ ✅ INFO     │ ⚙️ [SYSTEM     ] │ 📝 Starte Flask-Entwicklungsserver auf http://localhost:5000
+ * Debugger is active!
+ * Debugger PIN: 114-005-893

static/css/mindmap.css

@@ -9,7 +9,91 @@
     overflow: hidden;
 }
 
-/* Toolbar Styles */
+/* Cytoscape Container für die Hauptmindmap */
+#cy {
+    width: 100%;
+    height: 100%;
+    background: transparent;
+    position: absolute;
+    top: 0;
+    left: 0;
+    z-index: 1;
+}
+
+/* Subpage Styles - Identisches Design wie Hauptmindmap */
+.mindmap-subpage {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: var(--bg-primary);
+    display: flex;
+    flex-direction: column;
+    z-index: 10;
+    transition: opacity 0.3s ease, transform 0.3s ease;
+    opacity: 1;
+    transform: translateY(0);
+}
+
+/* Subpage Header */
+.subpage-header {
+    display: flex;
+    align-items: center;
+    padding: 16px;
+    background: var(--bg-secondary);
+    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
+    z-index: 2;
+}
+
+.dark .subpage-header {
+    background: rgba(30, 41, 59, 0.8);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+/* Zurück-Button */
+.back-button {
+    background: rgba(255, 255, 255, 0.1);
+    border: none;
+    color: white;
+    width: 40px;
+    height: 40px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    margin-right: 12px;
+}
+
+.back-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateY(-2px);
+}
+
+/* Subpage Titel */
+.subpage-title {
+    font-size: 1.5rem;
+    font-weight: 600;
+    color: white;
+    margin: 0;
+    background: linear-gradient(90deg, #60a5fa, #8b5cf6);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+}
+
+/* Subpage Cytoscape Container */
+.subpage-cy-container {
+    position: relative;
+    flex: 1;
+    width: 100%;
+    height: calc(100% - 72px);
+    overflow: hidden;
+    z-index: 1;
+}
+
+/* Toolbar für Zoom-Kontrollen */
 .mindmap-toolbar {
     position: absolute;
     top: 20px;
@@ -18,48 +102,74 @@
     display: flex;
     gap: 8px;
     padding: 8px;
-    background: var(--bg-secondary);
-    border-radius: 12px;
-    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
-    z-index: 1000;
-    transition: all 0.3s ease;
-}
-
-.dark .mindmap-toolbar {
     background: rgba(30, 41, 59, 0.8);
+    border-radius: 8px;
     box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    z-index: 20;
+    backdrop-filter: blur(8px);
     border: 1px solid rgba(255, 255, 255, 0.1);
 }
 
-/* Toolbar Buttons */
 .mindmap-toolbar button {
+    width: 40px;
+    height: 40px;
+    border: none;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border-radius: 6px;
     display: flex;
     align-items: center;
     justify-content: center;
-    width: 36px;
-    height: 36px;
-    border: none;
-    border-radius: 8px;
-    background: transparent;
-    color: var(--text-primary);
     cursor: pointer;
     transition: all 0.2s ease;
 }
 
 .mindmap-toolbar button:hover {
-    background: var(--accent-primary);
-    color: white;
-    transform: translateY(-1px);
-}
-
-.mindmap-toolbar button:active {
-    transform: translateY(0);
+    background: rgba(139, 92, 246, 0.5);
+    transform: translateY(-2px);
 }
 
 .mindmap-toolbar button i {
     font-size: 16px;
 }
 
+/* Mindmap Header */
+.mindmap-header {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    padding: 1.5rem;
+    background: rgba(15, 23, 42, 0.8);
+    backdrop-filter: blur(10px);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+    z-index: 10;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+/* Dark Mode spezifische Stile */
+.dark .mindmap-subpage {
+    background: linear-gradient(135deg, #0f172a 0%, #0c1221 100%);
+}
+
+/* Fix für Zoom-Buttons */
+body.dark .mindmap-toolbar button {
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+}
+
+body:not(.dark) .mindmap-toolbar button {
+    background: rgba(30, 41, 59, 0.2);
+    color: #1e293b;
+}
+
+/* Kontext-Menü-Anpassungen */
+.context-menu {
+    z-index: 1000;
+}
+
 /* Export Group Styles */
 .export-group {
     position: relative;
@@ -250,4 +360,78 @@
 .dark .mindmap-tooltip {
     background: rgba(30, 41, 59, 0.9);
     box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+}
+
+/* Kategorien-Panel */
+.categories-panel {
+    position: absolute;
+    top: 80px;
+    left: 20px;
+    width: 300px;
+    max-height: calc(100vh - 120px);
+    background: rgba(15, 23, 42, 0.95);
+    border-radius: 12px;
+    padding: 16px;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 1000;
+    backdrop-filter: blur(10px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    transform: translateX(-320px);
+    transition: transform 0.3s ease-in-out;
+    overflow-y: auto;
+}
+
+.categories-panel.visible {
+    transform: translateX(0);
+}
+
+.categories-panel h3 {
+    color: white;
+    font-size: 1.2rem;
+    margin: 0 0 16px 0;
+    padding-bottom: 8px;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.category-list {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+
+.category-item {
+    display: flex;
+    align-items: center;
+    padding: 8px 12px;
+    margin: 4px 0;
+    border-radius: 6px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    color: white;
+}
+
+.category-item:hover {
+    background: rgba(255, 255, 255, 0.1);
+    transform: translateX(4px);
+}
+
+.category-color {
+    width: 12px;
+    height: 12px;
+    border-radius: 50%;
+    margin-right: 12px;
+    flex-shrink: 0;
+}
+
+.category-name {
+    flex-grow: 1;
+    font-size: 0.95rem;
+}
+
+.category-count {
+    background: rgba(255, 255, 255, 0.1);
+    padding: 2px 8px;
+    border-radius: 12px;
+    font-size: 0.8rem;
+    margin-left: 8px;
 }

static/css/social.css

@@ -0,0 +1,915 @@
+/* ================================
+   SysTades Social Network Styles
+   ================================ */
+
+:root {
+  /* Primary Colors */
+  --primary-50: #f0f9ff;
+  --primary-100: #e0f2fe;
+  --primary-200: #bae6fd;
+  --primary-300: #7dd3fc;
+  --primary-400: #38bdf8;
+  --primary-500: #0ea5e9;
+  --primary-600: #0284c7;
+  --primary-700: #0369a1;
+  --primary-800: #075985;
+  --primary-900: #0c4a6e;
+
+  /* Neutral Colors */
+  --gray-50: #f9fafb;
+  --gray-100: #f3f4f6;
+  --gray-200: #e5e7eb;
+  --gray-300: #d1d5db;
+  --gray-400: #9ca3af;
+  --gray-500: #6b7280;
+  --gray-600: #4b5563;
+  --gray-700: #374151;
+  --gray-800: #1f2937;
+  --gray-900: #111827;
+
+  /* Semantic Colors */
+  --success: #10b981;
+  --warning: #f59e0b;
+  --error: #ef4444;
+  --info: #3b82f6;
+
+  /* Social Media Colors */
+  --like-color: #ec4899;
+  --share-color: #8b5cf6;
+  --bookmark-color: #f59e0b;
+  --comment-color: var(--primary-500);
+
+  /* Glassmorphism */
+  --glass-bg: rgba(255, 255, 255, 0.1);
+  --glass-border: rgba(255, 255, 255, 0.2);
+  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
+
+  /* Animations */
+  --transition-fast: 0.15s ease-out;
+  --transition-normal: 0.3s ease-out;
+  --transition-slow: 0.6s ease-out;
+
+  /* Shadows */
+  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
+  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
+  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
+  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
+
+  /* Border Radius */
+  --radius-sm: 0.375rem;
+  --radius-md: 0.5rem;
+  --radius-lg: 0.75rem;
+  --radius-xl: 1rem;
+  --radius-2xl: 1.5rem;
+}
+
+/* Dark Mode Variables */
+[data-theme="dark"] {
+  --glass-bg: rgba(0, 0, 0, 0.1);
+  --glass-border: rgba(255, 255, 255, 0.1);
+  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
+}
+
+/* ================================
+   Performance Optimizations
+   ================================ */
+
+* {
+  box-sizing: border-box;
+}
+
+img {
+  max-width: 100%;
+  height: auto;
+}
+
+/* GPU Acceleration for animations */
+.accelerated {
+  transform: translateZ(0);
+  will-change: transform;
+}
+
+/* Smooth scrolling */
+html {
+  scroll-behavior: smooth;
+}
+
+/* ================================
+   Social Feed Styles
+   ================================ */
+
+.social-feed {
+  max-width: 600px;
+  margin: 0 auto;
+  padding: 1rem;
+}
+
+.post-card {
+  background: var(--glass-bg);
+  backdrop-filter: blur(20px);
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-xl);
+  margin-bottom: 1.5rem;
+  padding: 1.5rem;
+  box-shadow: var(--shadow-lg);
+  transition: all var(--transition-normal);
+  position: relative;
+  overflow: hidden;
+}
+
+.post-card:hover {
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-xl);
+  border-color: var(--primary-300);
+}
+
+.post-card::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 3px;
+  background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
+  opacity: 0;
+  transition: opacity var(--transition-normal);
+}
+
+.post-card:hover::before {
+  opacity: 1;
+}
+
+/* Post Header */
+.post-header {
+  display: flex;
+  align-items: center;
+  margin-bottom: 1rem;
+  gap: 0.75rem;
+}
+
+.post-avatar {
+  width: 48px;
+  height: 48px;
+  border-radius: 50%;
+  border: 2px solid var(--primary-500);
+  transition: all var(--transition-fast);
+  cursor: pointer;
+}
+
+.post-avatar:hover {
+  transform: scale(1.1);
+  border-color: var(--primary-400);
+}
+
+.post-author {
+  flex: 1;
+}
+
+.post-author-name {
+  font-weight: 600;
+  color: var(--gray-800);
+  margin: 0;
+  font-size: 1rem;
+}
+
+.post-author-username {
+  color: var(--gray-500);
+  font-size: 0.875rem;
+  margin: 0;
+}
+
+.post-time {
+  color: var(--gray-400);
+  font-size: 0.875rem;
+}
+
+/* Post Content */
+.post-content {
+  margin-bottom: 1rem;
+  line-height: 1.6;
+  color: var(--gray-700);
+}
+
+.post-type-badge {
+  display: inline-block;
+  padding: 0.25rem 0.75rem;
+  border-radius: var(--radius-md);
+  font-size: 0.75rem;
+  font-weight: 500;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  margin-bottom: 0.5rem;
+}
+
+.post-type-text { background: var(--gray-100); color: var(--gray-600); }
+.post-type-thought { background: var(--primary-100); color: var(--primary-600); }
+.post-type-question { background: var(--warning); color: white; }
+.post-type-insight { background: var(--success); color: white; }
+
+/* Post Actions */
+.post-actions {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding-top: 1rem;
+  border-top: 1px solid var(--gray-200);
+}
+
+.action-group {
+  display: flex;
+  gap: 1rem;
+}
+
+.action-btn {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.5rem 1rem;
+  border: none;
+  background: transparent;
+  border-radius: var(--radius-md);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  font-size: 0.875rem;
+  color: var(--gray-500);
+}
+
+.action-btn:hover {
+  background: var(--gray-100);
+  color: var(--gray-700);
+  transform: translateY(-1px);
+}
+
+.action-btn.active {
+  color: var(--primary-600);
+  background: var(--primary-50);
+}
+
+.action-btn i {
+  font-size: 1rem;
+}
+
+/* Specific action colors */
+.action-btn.like-btn.active {
+  color: var(--like-color);
+  background: rgba(236, 72, 153, 0.1);
+}
+
+.action-btn.share-btn:hover {
+  color: var(--share-color);
+  background: rgba(139, 92, 246, 0.1);
+}
+
+.action-btn.bookmark-btn.active {
+  color: var(--bookmark-color);
+  background: rgba(245, 158, 11, 0.1);
+}
+
+/* ================================
+   Comments Section
+   ================================ */
+
+.comments-section {
+  border-top: 1px solid var(--gray-200);
+  padding-top: 1rem;
+  margin-top: 1rem;
+}
+
+.comment-item {
+  display: flex;
+  gap: 0.75rem;
+  margin-bottom: 1rem;
+  padding: 0.75rem;
+  border-radius: var(--radius-lg);
+  background: var(--gray-50);
+  transition: background var(--transition-fast);
+}
+
+.comment-item:hover {
+  background: var(--gray-100);
+}
+
+.comment-avatar {
+  width: 36px;
+  height: 36px;
+  border-radius: 50%;
+  border: 2px solid var(--primary-400);
+}
+
+.comment-content {
+  flex: 1;
+}
+
+.comment-header {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-bottom: 0.25rem;
+}
+
+.comment-author {
+  font-weight: 600;
+  color: var(--gray-800);
+  font-size: 0.875rem;
+}
+
+.comment-time {
+  color: var(--gray-400);
+  font-size: 0.75rem;
+}
+
+.comment-text {
+  color: var(--gray-700);
+  font-size: 0.875rem;
+  line-height: 1.5;
+  margin-bottom: 0.5rem;
+}
+
+.comment-actions {
+  display: flex;
+  gap: 1rem;
+}
+
+.comment-action {
+  background: none;
+  border: none;
+  color: var(--gray-400);
+  font-size: 0.75rem;
+  cursor: pointer;
+  transition: color var(--transition-fast);
+}
+
+.comment-action:hover {
+  color: var(--primary-500);
+}
+
+/* Comment Form */
+.comment-form {
+  display: flex;
+  gap: 0.75rem;
+  margin-top: 1rem;
+}
+
+.comment-form textarea {
+  flex: 1;
+  padding: 0.75rem;
+  border: 1px solid var(--gray-300);
+  border-radius: var(--radius-lg);
+  resize: none;
+  min-height: 80px;
+  transition: border-color var(--transition-fast);
+}
+
+.comment-form textarea:focus {
+  outline: none;
+  border-color: var(--primary-500);
+  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
+}
+
+.comment-submit {
+  padding: 0.75rem 1.5rem;
+  background: var(--primary-500);
+  color: white;
+  border: none;
+  border-radius: var(--radius-lg);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  font-weight: 500;
+}
+
+.comment-submit:hover {
+  background: var(--primary-600);
+  transform: translateY(-1px);
+}
+
+/* ================================
+   Create Post Form
+   ================================ */
+
+.create-post-form {
+  background: var(--glass-bg);
+  backdrop-filter: blur(20px);
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-xl);
+  padding: 1.5rem;
+  margin-bottom: 2rem;
+  box-shadow: var(--shadow-md);
+}
+
+.create-post-textarea {
+  width: 100%;
+  min-height: 120px;
+  padding: 1rem;
+  border: 1px solid var(--gray-300);
+  border-radius: var(--radius-lg);
+  resize: vertical;
+  font-family: inherit;
+  font-size: 1rem;
+  line-height: 1.5;
+  transition: all var(--transition-normal);
+}
+
+.create-post-textarea:focus {
+  outline: none;
+  border-color: var(--primary-500);
+  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
+}
+
+.create-post-options {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-top: 1rem;
+  gap: 1rem;
+}
+
+.post-type-select,
+.post-visibility-select {
+  padding: 0.5rem 1rem;
+  border: 1px solid var(--gray-300);
+  border-radius: var(--radius-md);
+  background: white;
+  cursor: pointer;
+  transition: border-color var(--transition-fast);
+}
+
+.post-type-select:focus,
+.post-visibility-select:focus {
+  outline: none;
+  border-color: var(--primary-500);
+}
+
+.create-post-btn {
+  padding: 0.75rem 2rem;
+  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
+  color: white;
+  border: none;
+  border-radius: var(--radius-lg);
+  cursor: pointer;
+  font-weight: 600;
+  transition: all var(--transition-normal);
+  box-shadow: var(--shadow-md);
+}
+
+.create-post-btn:hover {
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-lg);
+}
+
+.create-post-btn:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+  transform: none;
+}
+
+/* ================================
+   Filter Tabs
+   ================================ */
+
+.feed-filters {
+  display: flex;
+  gap: 0.5rem;
+  margin-bottom: 2rem;
+  padding: 0.5rem;
+  background: var(--gray-100);
+  border-radius: var(--radius-xl);
+  overflow-x: auto;
+}
+
+.filter-tab {
+  padding: 0.75rem 1.5rem;
+  border: none;
+  background: transparent;
+  border-radius: var(--radius-lg);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  font-weight: 500;
+  white-space: nowrap;
+  color: var(--gray-600);
+}
+
+.filter-tab:hover {
+  background: var(--gray-200);
+  color: var(--gray-800);
+}
+
+.filter-tab.active {
+  background: var(--primary-500);
+  color: white;
+  box-shadow: var(--shadow-md);
+}
+
+/* ================================
+   Notifications
+   ================================ */
+
+.notification-item {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  padding: 1rem;
+  border-radius: var(--radius-lg);
+  transition: all var(--transition-fast);
+  cursor: pointer;
+  position: relative;
+}
+
+.notification-item:hover {
+  background: var(--gray-50);
+  transform: translateX(4px);
+}
+
+.notification-item.unread {
+  background: var(--primary-50);
+  border-left: 4px solid var(--primary-500);
+}
+
+.notification-icon {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 1.2rem;
+  color: white;
+}
+
+.notification-like { background: var(--like-color); }
+.notification-comment { background: var(--comment-color); }
+.notification-follow { background: var(--success); }
+.notification-share { background: var(--share-color); }
+
+.notification-content {
+  flex: 1;
+}
+
+.notification-text {
+  margin: 0 0 0.25rem 0;
+  color: var(--gray-800);
+  font-size: 0.875rem;
+}
+
+.notification-time {
+  color: var(--gray-500);
+  font-size: 0.75rem;
+}
+
+.notification-actions {
+  display: flex;
+  gap: 0.5rem;
+}
+
+.notification-delete {
+  background: none;
+  border: none;
+  color: var(--gray-400);
+  cursor: pointer;
+  padding: 0.5rem;
+  border-radius: var(--radius-md);
+  transition: all var(--transition-fast);
+}
+
+.notification-delete:hover {
+  background: var(--error);
+  color: white;
+}
+
+/* ================================
+   User Profile
+   ================================ */
+
+.profile-header {
+  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
+  color: white;
+  padding: 2rem;
+  border-radius: var(--radius-2xl);
+  margin-bottom: 2rem;
+  position: relative;
+  overflow: hidden;
+}
+
+.profile-header::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
+  opacity: 0.3;
+}
+
+.profile-info {
+  position: relative;
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  gap: 1.5rem;
+}
+
+.profile-avatar {
+  width: 100px;
+  height: 100px;
+  border-radius: 50%;
+  border: 4px solid rgba(255, 255, 255, 0.3);
+  box-shadow: var(--shadow-xl);
+}
+
+.profile-details h1 {
+  margin: 0 0 0.5rem 0;
+  font-size: 2rem;
+  font-weight: 700;
+}
+
+.profile-username {
+  opacity: 0.9;
+  font-size: 1.1rem;
+  margin-bottom: 0.5rem;
+}
+
+.profile-bio {
+  opacity: 0.8;
+  line-height: 1.5;
+  max-width: 500px;
+}
+
+.profile-stats {
+  display: flex;
+  gap: 2rem;
+  margin-top: 1.5rem;
+}
+
+.stat-item {
+  text-align: center;
+}
+
+.stat-number {
+  display: block;
+  font-size: 1.5rem;
+  font-weight: 700;
+  margin-bottom: 0.25rem;
+}
+
+.stat-label {
+  font-size: 0.875rem;
+  opacity: 0.8;
+}
+
+.follow-btn {
+  background: rgba(255, 255, 255, 0.2);
+  border: 2px solid rgba(255, 255, 255, 0.3);
+  color: white;
+  padding: 0.75rem 2rem;
+  border-radius: var(--radius-lg);
+  font-weight: 600;
+  cursor: pointer;
+  transition: all var(--transition-normal);
+  backdrop-filter: blur(10px);
+}
+
+.follow-btn:hover {
+  background: rgba(255, 255, 255, 0.3);
+  transform: translateY(-2px);
+}
+
+.follow-btn.following {
+  background: rgba(255, 255, 255, 0.9);
+  color: var(--primary-600);
+}
+
+/* Profile Tabs */
+.profile-tabs {
+  display: flex;
+  border-bottom: 1px solid var(--gray-200);
+  margin-bottom: 2rem;
+  overflow-x: auto;
+}
+
+.profile-tab {
+  padding: 1rem 2rem;
+  border: none;
+  background: none;
+  cursor: pointer;
+  position: relative;
+  color: var(--gray-600);
+  font-weight: 500;
+  transition: all var(--transition-fast);
+  white-space: nowrap;
+}
+
+.profile-tab:hover {
+  color: var(--primary-600);
+}
+
+.profile-tab.active {
+  color: var(--primary-600);
+}
+
+.profile-tab.active::after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  height: 3px;
+  background: var(--primary-500);
+  border-radius: 2px 2px 0 0;
+}
+
+/* ================================
+   Responsive Design
+   ================================ */
+
+@media (max-width: 768px) {
+  .social-feed {
+    padding: 0.5rem;
+  }
+
+  .post-card {
+    padding: 1rem;
+    margin-bottom: 1rem;
+  }
+
+  .post-actions {
+    flex-direction: column;
+    gap: 1rem;
+    align-items: stretch;
+  }
+
+  .action-group {
+    justify-content: space-around;
+  }
+
+  .create-post-options {
+    flex-direction: column;
+    align-items: stretch;
+    gap: 0.75rem;
+  }
+
+  .feed-filters {
+    padding: 0.25rem;
+    gap: 0.25rem;
+  }
+
+  .filter-tab {
+    padding: 0.5rem 1rem;
+    font-size: 0.875rem;
+  }
+
+  .profile-header {
+    padding: 1.5rem;
+  }
+
+  .profile-info {
+    flex-direction: column;
+    text-align: center;
+    gap: 1rem;
+  }
+
+  .profile-avatar {
+    width: 80px;
+    height: 80px;
+  }
+
+  .profile-details h1 {
+    font-size: 1.5rem;
+  }
+
+  .profile-stats {
+    justify-content: center;
+    gap: 1.5rem;
+  }
+
+  .profile-tabs {
+    gap: 0;
+  }
+
+  .profile-tab {
+    flex: 1;
+    padding: 0.75rem 1rem;
+    text-align: center;
+    font-size: 0.875rem;
+  }
+}
+
+/* ================================
+   Loading & Animations
+   ================================ */
+
+.loading-spinner {
+  display: inline-block;
+  width: 20px;
+  height: 20px;
+  border: 2px solid var(--gray-300);
+  border-radius: 50%;
+  border-top-color: var(--primary-500);
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+.fade-in {
+  animation: fadeIn 0.5s ease-out;
+}
+
+@keyframes fadeIn {
+  from { opacity: 0; transform: translateY(20px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+.slide-up {
+  animation: slideUp 0.3s ease-out;
+}
+
+@keyframes slideUp {
+  from { transform: translateY(100%); opacity: 0; }
+  to { transform: translateY(0); opacity: 1; }
+}
+
+.pulse {
+  animation: pulse 2s infinite;
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.5; }
+}
+
+/* ================================
+   Toast Notifications
+   ================================ */
+
+.toast-container {
+  position: fixed;
+  top: 1rem;
+  right: 1rem;
+  z-index: 1000;
+  pointer-events: none;
+}
+
+.toast {
+  background: var(--glass-bg);
+  backdrop-filter: blur(20px);
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-lg);
+  padding: 1rem 1.5rem;
+  margin-bottom: 0.5rem;
+  box-shadow: var(--shadow-lg);
+  pointer-events: all;
+  max-width: 400px;
+  animation: slideInRight 0.3s ease-out;
+}
+
+.toast.success {
+  border-left: 4px solid var(--success);
+}
+
+.toast.error {
+  border-left: 4px solid var(--error);
+}
+
+.toast.warning {
+  border-left: 4px solid var(--warning);
+}
+
+.toast.info {
+  border-left: 4px solid var(--info);
+}
+
+@keyframes slideInRight {
+  from { transform: translateX(100%); opacity: 0; }
+  to { transform: translateX(0); opacity: 1; }
+}
+
+/* ================================
+   Utilities
+   ================================ */
+
+.text-gradient {
+  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+
+.glass-effect {
+  background: var(--glass-bg);
+  backdrop-filter: blur(20px);
+  border: 1px solid var(--glass-border);
+}
+
+.shadow-glow {
+  box-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
+}
+
+.scrollbar-hide {
+  -ms-overflow-style: none;
+  scrollbar-width: none;
+}
+
+.scrollbar-hide::-webkit-scrollbar {
+  display: none;
+} 

templates/base.html

@@ -101,7 +101,7 @@
     <link href="{{ url_for('static', filename='css/neural-network-background.css') }}" rel="stylesheet">
 
     <!-- Mindmap CSS -->
-    <link href="{{ url_for('static', filename='css/mindmap.css') }}" rel="stylesheet">
+    <link href="{{ url_for('static', filename='css/mindmap.css', v='1.0.1') }}" rel="stylesheet">
 
     <!-- D3.js für Visualisierungen -->
     <script src="https://d3js.org/d3.v7.min.js"></script>
@@ -307,7 +307,7 @@
         .chat-assistant .chat-messages {
           max-height: calc(80vh - 160px) !important;
         }
-      </style>
+    </style>
 </head>
 <body data-page="{{ request.endpoint }}" class="relative overflow-x-hidden dark bg-gray-900 text-white" x-data="{ 
     darkMode: true, 
@@ -404,6 +404,22 @@
                        : '{{ 'nav-link-light-active' if request.endpoint == 'mindmap' else 'nav-link-light' }}'">
                         <i class="fa-solid fa-diagram-project mr-2"></i>Mindmap
                     </a>
+                    {% if current_user.is_authenticated %}
+                    <a href="{{ url_for('social_feed') }}" 
+                       class="nav-link flex items-center"
+                       x-bind:class="darkMode 
+                       ? '{{ 'nav-link-active' if request.endpoint == 'social_feed' else '' }}' 
+                       : '{{ 'nav-link-light-active' if request.endpoint == 'social_feed' else 'nav-link-light' }}'">
+                        <i class="fa-solid fa-home mr-2"></i>Feed
+                    </a>
+                    <a href="{{ url_for('discover') }}" 
+                       class="nav-link flex items-center"
+                       x-bind:class="darkMode 
+                       ? '{{ 'nav-link-active' if request.endpoint == 'discover' else '' }}' 
+                       : '{{ 'nav-link-light-active' if request.endpoint == 'discover' else 'nav-link-light' }}'">
+                        <i class="fa-solid fa-compass mr-2"></i>Entdecken
+                    </a>
+                    {% endif %}
                     <a href="{{ url_for('search_thoughts_page') }}" 
                        class="nav-link flex items-center"
                        x-bind:class="darkMode 
@@ -573,6 +589,22 @@
                    : '{{ 'bg-purple-500/10 text-gray-900' if request.endpoint == 'mindmap' else 'text-gray-700 hover:bg-gray-100 hover:text-gray-900' }}'">
                     <i class="fa-solid fa-diagram-project w-5 mr-3"></i>Mindmap
                 </a>
+                {% if current_user.is_authenticated %}
+                <a href="{{ url_for('social_feed') }}" 
+                   class="block py-3.5 px-4 rounded-xl transition-all duration-200 flex items-center"
+                   x-bind:class="darkMode 
+                   ? '{{ 'bg-purple-500/20 text-white' if request.endpoint == 'social_feed' else 'text-white/80 hover:bg-gray-800/80 hover:text-white' }}' 
+                   : '{{ 'bg-purple-500/10 text-gray-900' if request.endpoint == 'social_feed' else 'text-gray-700 hover:bg-gray-100 hover:text-gray-900' }}'">
+                    <i class="fa-solid fa-home w-5 mr-3"></i>Feed
+                </a>
+                <a href="{{ url_for('discover') }}" 
+                   class="block py-3.5 px-4 rounded-xl transition-all duration-200 flex items-center"
+                   x-bind:class="darkMode 
+                   ? '{{ 'bg-purple-500/20 text-white' if request.endpoint == 'discover' else 'text-white/80 hover:bg-gray-800/80 hover:text-white' }}' 
+                   : '{{ 'bg-purple-500/10 text-gray-900' if request.endpoint == 'discover' else 'text-gray-700 hover:bg-gray-100 hover:text-gray-900' }}'">
+                    <i class="fa-solid fa-compass w-5 mr-3"></i>Entdecken
+                </a>
+                {% endif %}
                 <a href="{{ url_for('search_thoughts_page') }}" 
                    class="block py-3.5 px-4 rounded-xl transition-all duration-200 flex items-center"
                    x-bind:class="darkMode 

templates/edit_mindmap.html

@@ -231,16 +231,16 @@
       </div>
       
       <div class="form-body">
-        <form action="{{ url_for('edit_mindmap', mindmap_id=mindmap.id) }}" method="POST">
+        <form id="edit-mindmap-form">
           <div class="form-group">
             <label for="name" class="form-label">Name der Mindmap</label>
-            <input type="text" id="name" name="name" class="form-input input-animation" required 
+            <input type="text" id="name" name="name" class="form-input input-animation" required
                    placeholder="z.B. Meine Philosophie-Mindmap" value="{{ mindmap.name }}">
           </div>
           
           <div class="form-group">
             <label for="description" class="form-label">Beschreibung</label>
-            <textarea id="description" name="description" class="form-textarea input-animation" 
+            <textarea id="description" name="description" class="form-textarea input-animation"
                       placeholder="Worum geht es in dieser Mindmap?">{{ mindmap.description }}</textarea>
           </div>
           
@@ -253,11 +253,11 @@
           </div>
           
           <div class="flex justify-between mt-6">
-            <a href="{{ url_for('mindmap', mindmap_id=mindmap.id) }}" class="btn-cancel">
+            <a href="{{ url_for('my_account') }}" class="btn-cancel"> {# Zurück zur Kontoübersicht geändert #}
               <i class="fas fa-arrow-left"></i>
               Zurück
             </a>
-            <button type="submit" class="btn-submit">
+            <button type="button" id="save-mindmap-details-btn" class="btn-submit"> {# type="button" und ID hinzugefügt #}
               <i class="fas fa-save"></i>
               Änderungen speichern
             </button>
@@ -322,13 +322,58 @@
       });
     });
     
-    // Formular-Absenden-Animation
-    const form = document.querySelector('form');
-    form.addEventListener('submit', function(e) {
-      const submitBtn = this.querySelector('.btn-submit');
-      submitBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Wird gespeichert...';
-      submitBtn.disabled = true;
-    });
+    // Formular-Absenden-Logik für Metadaten
+    const editMindmapForm = document.getElementById('edit-mindmap-form');
+    const saveDetailsBtn = document.getElementById('save-mindmap-details-btn');
+
+    if (saveDetailsBtn && editMindmapForm) {
+      saveDetailsBtn.addEventListener('click', async function(event) {
+        event.preventDefault();
+        
+        const nameInput = document.getElementById('name');
+        const descriptionInput = document.getElementById('description');
+        const isPrivateInput = document.getElementById('is_private');
+
+        const mindmapId = "{{ mindmap.id }}"; // Sicherstellen, dass mindmap.id hier verfügbar ist
+
+        const data = {
+          name: nameInput.value,
+          description: descriptionInput.value,
+          is_private: isPrivateInput.checked
+          // Die 'data' (Knoten/Kanten) wird separat vom Cytoscape-Editor gehandhabt
+        };
+
+        saveDetailsBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Wird gespeichert...';
+        saveDetailsBtn.disabled = true;
+
+        try {
+          const response = await fetch(`/api/mindmaps/${mindmapId}`, {
+            method: 'PUT',
+            headers: {
+              'Content-Type': 'application/json'
+            },
+            body: JSON.stringify(data)
+          });
+
+          if (response.ok) {
+            const result = await response.json();
+            showStatus('Metadaten erfolgreich gespeichert!', false);
+            // Optional: Weiterleitung oder Aktualisierung der Seiteninhalte
+            // window.location.href = "{{ url_for('my_account') }}";
+          } else {
+            const errorData = await response.json();
+            console.error('Fehler beim Speichern der Metadaten:', errorData);
+            showStatus(`Fehler: ${errorData.error || response.statusText}`, true);
+          }
+        } catch (error) {
+          console.error('Netzwerkfehler oder anderer Fehler:', error);
+          showStatus('Speichern fehlgeschlagen. Netzwerkproblem?', true);
+        } finally {
+          saveDetailsBtn.innerHTML = '<i class="fas fa-save"></i> Änderungen speichern';
+          saveDetailsBtn.disabled = false;
+        }
+      });
+    }
 
     // Mindmap initialisieren
     const mindmap = new MindMap.Visualization('cy', {
@@ -337,56 +382,112 @@
       onNodeClick: function(nodeData) {
         console.log("Knoten ausgewählt:", nodeData);
       },
-      onChange: function(data) {
-        // Automatisches Speichern bei Änderungen
-        fetch('/api/mindmap/{{ mindmap.id }}/update', {
-          method: 'POST',
-          headers: {
-            'Content-Type': 'application/json',
-            'X-CSRFToken': '{{ csrf_token() }}'
-          },
-          body: JSON.stringify(data)
-        }).then(response => {
-          if (!response.ok) {
-            throw new Error('Netzwerkfehler beim Speichern');
-          }
-          console.log('Änderungen gespeichert');
-        }).catch(error => {
-          console.error('Fehler beim Speichern:', error);
-          alert('Fehler beim Speichern der Änderungen');
-        });
+      onChange: function(dataFromCytoscape) {
+        // Automatisches Speichern bei Änderungen der Mindmap-Struktur
+        // Die Metadaten (Name, Beschreibung, is_private) werden separat über das Formular oben gespeichert.
+        // Diese onChange Funktion kümmert sich nur um die Strukturdaten (Knoten/Kanten).
+        const mindmapId = "{{ mindmap.id }}";
+
+        // Debounce-Funktion, um API-Aufrufe zu limitieren
+        let debounceTimer;
+        const debounceSaveStructure = (currentMindmapData) => {
+          clearTimeout(debounceTimer);
+          debounceTimer = setTimeout(() => {
+            // Der Backend-Endpunkt PUT /api/mindmaps/<id> erwartet ein Objekt,
+            // das die zu aktualisierenden Felder enthält. Für die Struktur ist das 'data'.
+            const payload = {
+              data: currentMindmapData // Dies sind die von Cytoscape gelieferten Strukturdaten
+            };
+            
+            // showStatus('Speichere Struktur...', false); // Status wird jetzt über Event gehandhabt
+            fetch(`/api/mindmaps/${mindmapId}`, { // Endpunkt angepasst
+              method: 'PUT', // Methode zu PUT geändert
+              headers: {
+                'Content-Type': 'application/json'
+              },
+              body: JSON.stringify(payload) // Sende die Mindmap-Daten als { data: ... }
+            }).then(response => {
+              if (!response.ok) {
+                response.json().then(err => {
+                  console.error('Fehler beim Speichern der Struktur:', err);
+                  document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: `Struktur: ${err.message || err.error || 'Speicherfehler'}` } }));
+                }).catch(() => {
+                  console.error('Fehler beim Speichern der Struktur, Status:', response.statusText);
+                  document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: `Struktur: ${response.statusText}` } }));
+                });
+                // throw new Error('Netzwerkfehler beim Speichern der Struktur'); // Wird schon behandelt
+                return; // Verhindere weitere Verarbeitung bei Fehler
+              }
+              return response.json();
+            }).then(responseData => {
+              if (responseData) { // Nur wenn response.ok war
+                console.log('Mindmap-Struktur erfolgreich gespeichert:', responseData);
+                // Die responseData von einem PUT könnte die aktualisierte Mindmap oder nur eine Erfolgsmeldung sein.
+                // Annahme: { message: "Mindmap updated successfully", mindmap: { ... } } oder ähnlich
+                document.dispatchEvent(new CustomEvent('mindmapSaved', { detail: { message: 'Struktur aktualisiert!' }}));
+              }
+            }).catch(error => {
+              console.error('Netzwerkfehler oder anderer Fehler beim Speichern der Struktur:', error);
+              // Vermeide doppelte Fehlermeldung, falls schon durch !response.ok behandelt
+              if (!document.querySelector('.bg-red-500')) { // Prüft, ob schon eine Fehlermeldung angezeigt wird
+                 document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: 'Struktur: Netzwerkfehler' } }));
+              }
+            });
+          }, 1500); // Speichern 1.5 Sekunden nach der letzten Änderung
+        };
+        
+        debounceSaveStructure(dataFromCytoscape); // Aufruf der Debounce-Funktion mit Cytoscape-Daten
       }
     });
 
-    // Formularfelder mit Mindmap verbinden
-    const nameInput = document.getElementById('name');
-    const descriptionInput = document.getElementById('description');
-
-    // Aktualisiere Mindmap wenn sich die Eingaben ändern
-    nameInput.addEventListener('input', function() {
-      if (mindmap.cy) {
-        const rootNode = mindmap.cy.$('#root');
-        if (rootNode.length > 0) {
-          rootNode.data('name', this.value || 'Mindmap');
-          mindmap.saveToServer();
-        }
-      }
-    });
+    // Die Verknüpfung der Formularfelder (Name, Beschreibung) mit dem Cytoscape Root-Knoten wird entfernt,
+    // da die Metadaten nun über das separate Formular oben gespeichert werden und nicht mehr direkt
+    // die Cytoscape-Daten manipulieren sollen. Die Logik für mindmap.saveToServer() wurde entfernt,
+    // da das Speichern jetzt über den onChange Handler mit PUT /api/mindmaps/<id> erfolgt.
+    // const nameInput = document.getElementById('name'); // Bereits oben deklariert für Metadaten
+    // nameInput.removeEventListener('input', ...); // Event Listener muss hier nicht entfernt werden, da er nicht neu hinzugefügt wird.
 
     // Initialisiere die Mindmap mit existierenden Daten
     mindmap.initialize().then(() => {
       console.log("Mindmap-Editor initialisiert");
+      const mindmapId = "{{ mindmap.id }}";
       
-      // Lade existierende Daten
-      fetch('/api/mindmap/{{ mindmap.id }}/data')
-        .then(response => response.json())
-        .then(data => {
-          mindmap.loadData(data);
-          console.log("Mindmap-Daten geladen");
+      // Lade existierende Daten für die Mindmap-Struktur
+      fetch(`/api/mindmaps/${mindmapId}`, { // Endpunkt für GET angepasst
+        method: 'GET',
+        headers: {
+          'Accept': 'application/json'
+        }
+      })
+        .then(response => {
+          if (!response.ok) {
+            response.json().then(err => {
+                 showStatus(`Fehler beim Laden: ${err.message || err.error || response.statusText}`, true);
+            }).catch(() => {
+                 showStatus(`Fehler beim Laden: ${response.statusText}`, true);
+            });
+            throw new Error(`Netzwerkantwort war nicht ok: ${response.statusText}`);
+          }
+          return response.json();
+        })
+        .then(mindmapDataFromServer => {
+          // Die API GET /api/mindmaps/<id> gibt ein Objekt zurück, das { id, name, description, is_private, data, ... } enthält.
+          // Wir brauchen nur den 'data'-Teil (Struktur) für Cytoscape.
+          // Die Metadaten (name, description, is_private) werden bereits serverseitig in die Formularfelder gerendert.
+          if (mindmapDataFromServer && mindmapDataFromServer.data) {
+            mindmap.loadData(mindmapDataFromServer.data); // Lade nur die Strukturdaten
+            console.log("Mindmap-Strukturdaten geladen:", mindmapDataFromServer.data);
+            showStatus("Mindmap geladen.", false);
+          } else {
+            console.error("Fehler: Mindmap-Daten (Struktur) nicht im erwarteten Format:", mindmapDataFromServer);
+            showStatus("Fehler: Mindmap-Struktur konnte nicht geladen werden (Formatfehler).", true);
+          }
         })
         .catch(error => {
-          console.error("Fehler beim Laden der Mindmap-Daten:", error);
-          alert("Fehler beim Laden der Mindmap");
+          console.error("Fehler beim Laden der Mindmap-Strukturdaten:", error);
+          if (!document.querySelector('.bg-red-500')) { // Prüft, ob schon eine Fehlermeldung angezeigt wird
+            showStatus("Laden der Struktur fehlgeschlagen.", true);
+          }
         });
     }).catch(error => {
       console.error("Fehler bei der Initialisierung des Editors:", error);
@@ -411,8 +512,9 @@
     }
 
     // Event-Listener für Speicherstatus
-    document.addEventListener('mindmapSaved', () => {
-      showStatus('Änderungen gespeichert');
+    document.addEventListener('mindmapSaved', (event) => {
+      const message = event.detail && event.detail.message ? event.detail.message : 'Erfolgreich gespeichert!';
+      showStatus(message, false);
     });
 
     document.addEventListener('mindmapError', (event) => {

templates/errors/400.html

@@ -0,0 +1,48 @@
+{% extends "base.html" %}
+
+{% block title %}400 - Ungültige Anfrage{% endblock %}
+
+{% block content %}
+<div class="container mx-auto max-w-4xl px-4 py-8">
+    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-8 border border-gray-200 dark:border-gray-700">
+        <div class="text-center mb-8">
+            <div class="text-6xl font-bold text-red-500 mb-4">400</div>
+            <h1 class="text-3xl font-bold mb-2">Ungültige Anfrage</h1>
+            <p class="text-gray-600 dark:text-gray-400">Die Anfrage konnte nicht verarbeitet werden.</p>
+        </div>
+
+        <div class="mb-8 p-4 border border-red-200 dark:border-red-900 bg-red-50 dark:bg-red-900/20 rounded-lg">
+            <div class="flex items-start">
+                <div class="flex-shrink-0">
+                    <svg class="h-5 w-5 text-red-500" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
+                        <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd" />
+                    </svg>
+                </div>
+                <div class="ml-3">
+                    <h3 class="text-sm font-medium text-red-800 dark:text-red-400">Fehlerbeschreibung</h3>
+                    <div class="mt-2 text-sm text-red-700 dark:text-red-300">
+                        {% if error %}
+                        <p>{{ error }}</p>
+                        {% else %}
+                        <p>Die Anfrage enthält ungültige oder fehlerhafte Daten und konnte nicht verarbeitet werden.</p>
+                        {% endif %}
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="text-center">
+            <p class="mb-4 text-gray-600 dark:text-gray-400">Hier sind einige Dinge, die Sie versuchen können:</p>
+            <ul class="list-disc list-inside text-left max-w-md mx-auto mb-6 text-gray-600 dark:text-gray-400">
+                <li>Überprüfen Sie Ihre Eingaben auf Fehler.</li>
+                <li>Stellen Sie sicher, dass Sie die richtigen Daten übermittelt haben.</li>
+                <li>Versuchen Sie, die Seite neu zu laden.</li>
+                <li>Kehren Sie zur Startseite zurück und versuchen Sie es erneut.</li>
+            </ul>
+            <a href="{{ url_for('index') }}" class="inline-flex items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md shadow-sm text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500">
+                Zurück zur Startseite
+            </a>
+        </div>
+    </div>
+</div>
+{% endblock %}

templates/mindmap.html

@@ -20,6 +20,46 @@
     background: transparent;
   }
 
+  /* Zoom-Toolbar */
+  .mindmap-toolbar {
+    position: absolute;
+    top: 80px;
+    left: 50%;
+    transform: translateX(-50%);
+    display: flex;
+    gap: 8px;
+    padding: 8px;
+    background: rgba(30, 41, 59, 0.8);
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    z-index: 10;
+    backdrop-filter: blur(8px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
+  
+  .mindmap-toolbar button {
+    width: 40px;
+    height: 40px;
+    border: none;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border-radius: 6px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all 0.2s ease;
+  }
+  
+  .mindmap-toolbar button:hover {
+    background: rgba(139, 92, 246, 0.5);
+    transform: translateY(-2px);
+  }
+  
+  .mindmap-toolbar button i {
+    font-size: 16px;
+  }
+
   /* Header-Bereich */
   .mindmap-header {
     position: absolute;
@@ -31,6 +71,9 @@
     backdrop-filter: blur(10px);
     border-bottom: 1px solid rgba(255, 255, 255, 0.1);
     z-index: 10;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
   }
 
   .mindmap-title {
@@ -43,6 +86,47 @@
     -webkit-text-fill-color: transparent;
   }
 
+  /* Aktionsmenü im Header */
+  .mindmap-actions {
+    display: flex;
+    gap: 0.75rem;
+  }
+
+  .action-button {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 0.5rem;
+    padding: 0.5rem 1rem;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    border-radius: 0.5rem;
+    font-size: 0.9rem;
+    cursor: pointer;
+    transition: all 0.3s ease;
+  }
+
+  .action-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+  }
+
+  .action-button.primary {
+    background: rgba(139, 92, 246, 0.3);
+  }
+
+  .action-button.primary:hover {
+    background: rgba(139, 92, 246, 0.5);
+  }
+
+  .action-button.danger {
+    background: rgba(220, 38, 38, 0.3);
+  }
+
+  .action-button.danger:hover {
+    background: rgba(220, 38, 38, 0.5);
+  }
+
   /* Kontrollpanel */
   .control-panel {
     position: absolute;
@@ -79,6 +163,85 @@
     margin-right: 0.75rem;
   }
 
+  /* CRUD Panel */
+  .crud-panel {
+    position: absolute;
+    bottom: 2rem;
+    left: 50%;
+    transform: translateX(-50%);
+    background: rgba(15, 23, 42, 0.9);
+    border-radius: 1rem;
+    padding: 1rem;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 10;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    display: flex;
+    gap: 0.75rem;
+    backdrop-filter: blur(8px);
+  }
+
+  .crud-button {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    width: 4rem;
+    height: 4rem;
+    background: rgba(255, 255, 255, 0.1);
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    border-radius: 0.75rem;
+    color: white;
+    cursor: pointer;
+    transition: all 0.3s ease;
+  }
+
+  .crud-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateY(-5px);
+  }
+
+  .crud-button i {
+    font-size: 1.25rem;
+    margin-bottom: 0.25rem;
+  }
+
+  .crud-button span {
+    font-size: 0.7rem;
+    text-align: center;
+  }
+
+  .crud-button.create {
+    background: rgba(16, 185, 129, 0.3);
+  }
+
+  .crud-button.create:hover {
+    background: rgba(16, 185, 129, 0.5);
+  }
+
+  .crud-button.edit {
+    background: rgba(245, 158, 11, 0.3);
+  }
+
+  .crud-button.edit:hover {
+    background: rgba(245, 158, 11, 0.5);
+  }
+
+  .crud-button.delete {
+    background: rgba(220, 38, 38, 0.3);
+  }
+
+  .crud-button.delete:hover {
+    background: rgba(220, 38, 38, 0.5);
+  }
+
+  .crud-button.save {
+    background: rgba(59, 130, 246, 0.3);
+  }
+
+  .crud-button.save:hover {
+    background: rgba(59, 130, 246, 0.5);
+  }
+
   /* Info-Panel */
   .info-panel {
     position: absolute;
@@ -157,68 +320,161 @@
   .pulse {
     animation: pulse 2s infinite;
   }
+  
+  /* Ladeanzeige */
+  .loader {
+    border: 4px solid rgba(255, 255, 255, 0.1);
+    border-radius: 50%;
+    border-top: 4px solid #60a5fa;
+    width: 40px;
+    height: 40px;
+    animation: spin 1s linear infinite;
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    margin-top: -20px;
+    margin-left: -20px;
+    z-index: 5;
+  }
+  
+  @keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+  }
+  
+  /* Status-Meldung */
+  .status-message {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    background: rgba(15, 23, 42, 0.9);
+    padding: 1rem 2rem;
+    border-radius: 0.5rem;
+    color: white;
+    font-size: 1rem;
+    z-index: 15;
+    text-align: center;
+    max-width: 80%;
+  }
+  
+  /* Bearbeitungsmodus-Hinweis */
+  .edit-mode-indicator {
+    position: fixed;
+    bottom: 1rem;
+    left: 1rem;
+    background: rgba(245, 158, 11, 0.8);
+    color: white;
+    padding: 0.5rem 1rem;
+    border-radius: 0.5rem;
+    font-size: 0.9rem;
+    z-index: 1000;
+    display: none;
+  }
+  
+  .edit-mode-indicator.active {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+  }
+  
+  /* Kontext-Menü */
+  .context-menu {
+    position: absolute;
+    background: rgba(30, 41, 59, 0.95);
+    border-radius: 8px;
+    padding: 8px 0;
+    min-width: 160px;
+    z-index: 2000;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
+    backdrop-filter: blur(8px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
+  
+  .context-menu-item {
+    padding: 8px 16px;
+    color: white;
+    cursor: pointer;
+    transition: background-color 0.2s ease;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+  }
+  
+  .context-menu-item:hover {
+    background: rgba(255, 255, 255, 0.1);
+  }
 </style>
 {% endblock %}
 
 {% block content %}
 <div class="mindmap-container">
-  <!-- Header -->
-  <div class="mindmap-header">
-    <h1 class="mindmap-title">Interaktive Wissenslandkarte</h1>
-  </div>
-
-  <!-- Hauptvisualisierung -->
   <div id="cy"></div>
-
-  <!-- Kontrollpanel -->
-  <div class="control-panel">
-    <button id="zoomIn" class="control-button">
-      <i class="fas fa-search-plus"></i>
-      <span>Vergrößern</span>
-    </button>
-    <button id="zoomOut" class="control-button">
-      <i class="fas fa-search-minus"></i>
-      <span>Verkleinern</span>
-    </button>
-    <button id="resetView" class="control-button">
-      <i class="fas fa-sync"></i>
-      <span>Zurücksetzen</span>
-    </button>
-    <button id="toggleLegend" class="control-button">
-      <i class="fas fa-layer-group"></i>
-      <span>Legende</span>
-    </button>
+  
+  <!-- Toolbar -->
+  <div class="mindmap-toolbar">
+    <div class="toolbar-section">
+      <button id="add-node-btn" class="toolbar-btn" title="Knoten hinzufügen">
+        <i class="fas fa-plus"></i>
+        <span>Knoten</span>
+      </button>
+      <button id="add-thought-btn" class="toolbar-btn" title="Gedanken hinzufügen">
+        <i class="fas fa-lightbulb"></i>
+        <span>Gedanke</span>
+      </button>
+      <button id="collaborate-btn" class="toolbar-btn" title="Kollaboration starten">
+        <i class="fas fa-users"></i>
+        <span>Kollaboration</span>
+      </button>
+    </div>
+    
+    <div class="toolbar-section">
+      <button id="export-btn" class="toolbar-btn" title="Mindmap exportieren">
+        <i class="fas fa-download"></i>
+        <span>Export</span>
+      </button>
+      <button id="share-btn" class="toolbar-btn" title="Mindmap teilen">
+        <i class="fas fa-share"></i>
+        <span>Teilen</span>
+      </button>
+      <button id="fullscreen-btn" class="toolbar-btn" title="Vollbild">
+        <i class="fas fa-expand"></i>
+        <span>Vollbild</span>
+      </button>
+    </div>
+    
+    <div class="toolbar-section">
+      <button id="zoom-in-btn" class="toolbar-btn" title="Vergrößern">
+        <i class="fas fa-search-plus"></i>
+      </button>
+      <button id="zoom-out-btn" class="toolbar-btn" title="Verkleinern">
+        <i class="fas fa-search-minus"></i>
+      </button>
+      <button id="reset-view-btn" class="toolbar-btn" title="Ansicht zurücksetzen">
+        <i class="fas fa-home"></i>
+      </button>
+    </div>
+  </div>
+  
+  <div class="mindmap-header">
+    <h1 class="mindmap-title">Wissenslandschaft</h1>
+    <div class="mindmap-actions">
+      <button class="action-button" id="toggleCategories">
+        <i class="fas fa-tags"></i> Kategorien
+      </button>
+      <button class="action-button primary" id="startEdit">
+        <i class="fas fa-edit"></i> Bearbeiten
+      </button>
+    </div>
   </div>
 
-  <!-- Info-Panel -->
+  <!-- Info-Panel für Knotendetails -->
   <div id="infoPanel" class="info-panel">
     <h3 class="info-title">Knotendetails</h3>
     <div class="info-content"></div>
   </div>
-
-  <!-- Kategorie-Legende -->
-  <div id="categoryLegend" class="category-legend">
-    <div class="category-item">
-      <div class="category-color" style="background-color: #60a5fa;"></div>
-      <span>Philosophie</span>
-    </div>
-    <div class="category-item">
-      <div class="category-color" style="background-color: #8b5cf6;"></div>
-      <span>Wissenschaft</span>
-    </div>
-    <div class="category-item">
-      <div class="category-color" style="background-color: #10b981;"></div>
-      <span>Technologie</span>
-    </div>
-    <div class="category-item">
-      <div class="category-color" style="background-color: #f59e0b;"></div>
-      <span>Künste</span>
-    </div>
-    <div class="category-item">
-      <div class="category-color" style="background-color: #ef4444;"></div>
-      <span>Psychologie</span>
-    </div>
-  </div>
+  
+  <div id="categoryLegend" class="category-legend"></div>
 </div>
 {% endblock %}
 
@@ -228,5 +484,447 @@
 <script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape-cose-bilkent/4.1.0/cytoscape-cose-bilkent.min.js"></script>
 
 <!-- Unsere JavaScript-Dateien -->
-<script src="{{ url_for('static', filename='js/update_mindmap.js') }}"></script>
+<script src="{{ url_for('static', filename='js/update_mindmap.js', v='1.0.1') }}"></script>
+
+<!-- Initialisierung -->
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+  console.log('DOMContentLoaded Event ausgelöst');
+  
+  const cyContainer = document.getElementById('cy');
+  const loader = document.getElementById('loader');
+  const statusMessage = document.getElementById('statusMessage');
+  const crudPanel = document.getElementById('crudPanel');
+  const editModeIndicator = document.getElementById('editModeIndicator');
+  
+  // CRUD Buttons
+  const createNodeBtn = document.getElementById('createNode');
+  const createEdgeBtn = document.getElementById('createEdge');
+  const editNodeBtn = document.getElementById('editNode');
+  const deleteElementBtn = document.getElementById('deleteElement');
+  const saveMindmapBtn = document.getElementById('saveMindmap');
+  
+  // Header Action Buttons
+  const toggleEditModeBtn = document.getElementById('toggleEditMode');
+  const saveChangesBtn = document.getElementById('saveChanges');
+  const cancelEditBtn = document.getElementById('cancelEdit');
+  
+  let isEditMode = false;
+  let selectedElement = null;
+  
+  if (cyContainer) {
+    console.log('Container gefunden:', cyContainer);
+    
+    // Loader und Statusmeldung anzeigen, nur wenn die Elemente existieren
+    if (loader) loader.style.display = 'block';
+    if (statusMessage) {
+      statusMessage.textContent = 'Lade Mindmap...';
+      statusMessage.style.display = 'block';
+    }
+    
+    // Prüfen, ob Cytoscape vorhanden ist
+    if (typeof cytoscape !== 'undefined') {
+      console.log('Cytoscape ist verfügbar');
+      
+      // Initialisieren der Mindmap
+      initializeMindmap().then(() => {
+        // Erfolg: Loader und Statusmeldung ausblenden
+        if (loader) loader.style.display = 'none';
+        if (statusMessage) statusMessage.style.display = 'none';
+        
+        // Event-Listener für Knotenauswahl
+        window.cy.on('select', 'node', function(event) {
+          selectedElement = event.target;
+          if (editNodeBtn) editNodeBtn.disabled = false;
+          if (deleteElementBtn) deleteElementBtn.disabled = false;
+          
+          // Knotendetails im Info-Panel anzeigen
+          showNodeInfo(selectedElement);
+        });
+        
+        window.cy.on('select', 'edge', function(event) {
+          selectedElement = event.target;
+          if (editNodeBtn) editNodeBtn.disabled = true;
+          if (deleteElementBtn) deleteElementBtn.disabled = false;
+        });
+        
+        window.cy.on('unselect', function() {
+          selectedElement = null;
+          if (editNodeBtn) editNodeBtn.disabled = true;
+          if (deleteElementBtn) deleteElementBtn.disabled = true;
+          
+          // Info-Panel ausblenden
+          hideNodeInfo();
+        });
+        
+        // Rechtsklick-Menü
+        window.cy.on('cxttap', 'node', function(event) {
+          // Kontextmenü für Knoten anzeigen
+          if (isEditMode) {
+            const node = event.target;
+            const position = event.renderedPosition;
+            showNodeContextMenu(node, {
+              x: event.originalEvent.clientX,
+              y: event.originalEvent.clientY
+            });
+            event.preventDefault();
+          }
+        });
+        
+        window.cy.on('cxttap', function(event) {
+          // Kontextmenü zum Hinzufügen eines Knotens
+          if (isEditMode && event.target === window.cy) {
+            showAddNodeMenu({
+              x: event.originalEvent.clientX,
+              y: event.originalEvent.clientY
+            });
+            event.preventDefault();
+          }
+        });
+      }).catch(error => {
+        // Fehler: Fehlermeldung anzeigen
+        console.error('Mindmap-Initialisierung fehlgeschlagen', error);
+        if (loader) loader.style.display = 'none';
+        if (statusMessage) {
+          statusMessage.textContent = 'Mindmap konnte nicht initialisiert werden: ' + error.message;
+          statusMessage.style.backgroundColor = 'rgba(220, 38, 38, 0.9)';
+          statusMessage.style.display = 'block';
+        }
+      });
+    } else {
+      console.error('Cytoscape ist nicht verfügbar');
+      if (loader) loader.style.display = 'none';
+      if (statusMessage) {
+        statusMessage.textContent = 'Cytoscape-Bibliothek konnte nicht geladen werden';
+        statusMessage.style.backgroundColor = 'rgba(220, 38, 38, 0.9)';
+        statusMessage.style.display = 'block';
+      }
+    }
+  } else {
+    console.error('Container #cy nicht gefunden');
+  }
+  
+  // Bearbeitungsmodus umschalten (nur wenn alle erforderlichen Elemente existieren)
+  if (toggleEditModeBtn && crudPanel && editModeIndicator && saveChangesBtn && cancelEditBtn && window.cy) {
+    toggleEditModeBtn.addEventListener('click', function() {
+      isEditMode = !isEditMode;
+      
+      if (isEditMode) {
+        // Bearbeitungsmodus aktivieren
+        crudPanel.style.display = 'flex';
+        editModeIndicator.classList.add('active');
+        toggleEditModeBtn.style.display = 'none';
+        saveChangesBtn.style.display = 'inline-flex';
+        cancelEditBtn.style.display = 'inline-flex';
+        window.cy.container().classList.add('editing-mode');
+        
+        // Aktiviere Knotenbewegung (dragging)
+        window.cy.nodes().unlock();
+      } else {
+        // Bearbeitungsmodus deaktivieren
+        crudPanel.style.display = 'none';
+        editModeIndicator.classList.remove('active');
+        toggleEditModeBtn.style.display = 'inline-flex';
+        saveChangesBtn.style.display = 'none';
+        cancelEditBtn.style.display = 'none';
+        window.cy.container().classList.remove('editing-mode');
+        
+        // Deaktiviere Knotenbewegung
+        window.cy.nodes().lock();
+      }
+    });
+  }
+  
+  // Änderungen speichern
+  if (saveChangesBtn && window.cy) {
+    saveChangesBtn.addEventListener('click', function() {
+      saveMindmapChanges(window.cy);
+    });
+  }
+  
+  // Bearbeitungsmodus abbrechen
+  if (cancelEditBtn && crudPanel && editModeIndicator && toggleEditModeBtn && saveChangesBtn && loader && statusMessage) {
+    cancelEditBtn.addEventListener('click', function() {
+      if (confirm('Möchten Sie den Bearbeitungsmodus wirklich verlassen? Nicht gespeicherte Änderungen gehen verloren.')) {
+        isEditMode = false;
+        crudPanel.style.display = 'none';
+        editModeIndicator.classList.remove('active');
+        toggleEditModeBtn.style.display = 'inline-flex';
+        saveChangesBtn.style.display = 'none';
+        cancelEditBtn.style.display = 'none';
+        window.cy.container().classList.remove('editing-mode');
+        
+        // Neuinitialisierung der Mindmap
+        initializeMindmap().then(() => {
+          if (loader) loader.style.display = 'none';
+          if (statusMessage) statusMessage.style.display = 'none';
+        });
+      }
+    });
+  }
+  
+  // CRUD-Funktionen
+  if (createNodeBtn && window.cy) {
+    createNodeBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        addNewNode(window.cy);
+      }
+    });
+  }
+  
+  if (createEdgeBtn && window.cy) {
+    createEdgeBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        enableEdgeCreationMode(window.cy);
+      }
+    });
+  }
+  
+  if (editNodeBtn) {
+    editNodeBtn.addEventListener('click', function() {
+      if (isEditMode && selectedElement && selectedElement.isNode()) {
+        editNodeProperties(selectedElement);
+      }
+    });
+  }
+  
+  if (deleteElementBtn) {
+    deleteElementBtn.addEventListener('click', function() {
+      if (isEditMode && selectedElement) {
+        if (selectedElement.isNode()) {
+          deleteNode(selectedElement);
+        } else if (selectedElement.isEdge()) {
+          if (confirm('Möchten Sie diese Verbindung wirklich löschen?')) {
+            selectedElement.remove();
+          }
+        }
+      }
+    });
+  }
+  
+  if (saveMindmapBtn && window.cy) {
+    saveMindmapBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        saveMindmapChanges(window.cy);
+      }
+    });
+  }
+  
+  // Funktionen für Zoom-Buttons und Reset
+  const zoomInBtn = document.getElementById('zoom-in-btn');
+  const zoomOutBtn = document.getElementById('zoom-out-btn');
+  const resetViewBtn = document.getElementById('reset-view-btn');
+  
+  if (zoomInBtn && window.cy) {
+    zoomInBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.zoom(window.cy.zoom() * 1.2);
+    });
+  }
+  
+  if (zoomOutBtn && window.cy) {
+    zoomOutBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.zoom(window.cy.zoom() * 0.8);
+    });
+  }
+  
+  if (resetViewBtn && window.cy) {
+    resetViewBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.fit();
+    });
+  }
+
+  // Neue Toolbar-Funktionen
+  const addNodeBtn = document.getElementById('add-node-btn');
+  const addThoughtBtn = document.getElementById('add-thought-btn');
+  const collaborateBtn = document.getElementById('collaborate-btn');
+  const exportBtn = document.getElementById('export-btn');
+  const shareBtn = document.getElementById('share-btn');
+  const fullscreenBtn = document.getElementById('fullscreen-btn');
+  
+  if (addNodeBtn) {
+    addNodeBtn.addEventListener('click', function() {
+      // Öffne Modal zum Hinzufügen eines neuen Knotens
+      showAddNodeModal();
+    });
+  }
+  
+  if (addThoughtBtn) {
+    addThoughtBtn.addEventListener('click', function() {
+      // Öffne Modal zum Hinzufügen eines Gedankens
+      showAddThoughtModal();
+    });
+  }
+  
+  if (collaborateBtn) {
+    collaborateBtn.addEventListener('click', function() {
+      // Starte Kollaborationsmodus
+      startCollaboration();
+    });
+  }
+  
+  if (exportBtn) {
+    exportBtn.addEventListener('click', function() {
+      // Exportiere Mindmap
+      exportMindmap();
+    });
+  }
+  
+  if (shareBtn) {
+    shareBtn.addEventListener('click', function() {
+      // Teile Mindmap
+      shareMindmap();
+    });
+  }
+  
+  if (fullscreenBtn) {
+    fullscreenBtn.addEventListener('click', function() {
+      // Vollbild-Modus
+      toggleFullscreen();
+    });
+  }
+  
+  // Funktionen implementieren
+  function showAddNodeModal() {
+    // Erstelle ein einfaches Modal für neuen Knoten
+    const nodeName = prompt('Name des neuen Knotens:');
+    if (nodeName && nodeName.trim()) {
+      addNewNode(nodeName.trim());
+    }
+  }
+  
+  function showAddThoughtModal() {
+    // Erstelle ein Modal für neuen Gedanken
+    const thoughtTitle = prompt('Titel des Gedankens:');
+    if (thoughtTitle && thoughtTitle.trim()) {
+      addNewThought(thoughtTitle.trim());
+    }
+  }
+  
+  function addNewNode(name) {
+    // API-Aufruf zum Hinzufügen eines neuen Knotens
+    fetch('/api/mindmap/public/add_node', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        name: name,
+        description: '',
+        x_position: Math.random() * 400 + 100,
+        y_position: Math.random() * 400 + 100
+      })
+    })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        // Lade Mindmap neu
+        location.reload();
+      } else {
+        alert('Fehler beim Hinzufügen des Knotens: ' + (data.error || 'Unbekannter Fehler'));
+      }
+    })
+    .catch(error => {
+      console.error('Fehler:', error);
+      alert('Ein Fehler ist aufgetreten.');
+    });
+  }
+  
+  function addNewThought(title) {
+    // API-Aufruf zum Hinzufügen eines neuen Gedankens
+    fetch('/api/thoughts', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        title: title,
+        content: 'Neuer Gedanke erstellt über die Mindmap',
+        branch: 'Allgemein'
+      })
+    })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        alert('Gedanke erfolgreich erstellt!');
+      } else {
+        alert('Fehler beim Erstellen des Gedankens: ' + (data.error || 'Unbekannter Fehler'));
+      }
+    })
+    .catch(error => {
+      console.error('Fehler:', error);
+      alert('Ein Fehler ist aufgetreten.');
+    });
+  }
+  
+  function startCollaboration() {
+    // Kollaborationsmodus starten
+    alert('Kollaborationsmodus wird bald verfügbar sein!\n\nGeplante Features:\n- Echtzeit-Bearbeitung\n- Live-Cursor anderer Benutzer\n- Chat-Integration\n- Änderungshistorie');
+  }
+  
+  function exportMindmap() {
+    // Mindmap exportieren
+    const format = prompt('Export-Format wählen:\n1. JSON\n2. PNG (geplant)\n3. PDF (geplant)\n\nGeben Sie 1, 2 oder 3 ein:', '1');
+    
+    if (format === '1') {
+      // JSON-Export
+      if (window.cy) {
+        const data = window.cy.json();
+        const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = 'mindmap-export.json';
+        a.click();
+        URL.revokeObjectURL(url);
+      }
+    } else {
+      alert('Dieses Format wird bald verfügbar sein!');
+    }
+  }
+  
+  function shareMindmap() {
+    // Mindmap teilen
+    if (navigator.share) {
+      navigator.share({
+        title: 'SysTades Mindmap',
+        text: 'Schau dir diese interessante Mindmap an!',
+        url: window.location.href
+      });
+    } else {
+      // Fallback: URL kopieren
+      navigator.clipboard.writeText(window.location.href).then(() => {
+        alert('Mindmap-Link wurde in die Zwischenablage kopiert!');
+      }).catch(() => {
+        prompt('Kopiere diesen Link zum Teilen:', window.location.href);
+      });
+    }
+  }
+  
+  function toggleFullscreen() {
+    // Vollbild-Modus umschalten
+    if (!document.fullscreenElement) {
+      document.documentElement.requestFullscreen().catch(err => {
+        console.error('Fehler beim Aktivieren des Vollbildmodus:', err);
+      });
+    } else {
+      document.exitFullscreen();
+    }
+  }
+  
+  // Vollbild-Event-Listener
+  document.addEventListener('fullscreenchange', function() {
+    const fullscreenBtn = document.getElementById('fullscreen-btn');
+    if (fullscreenBtn) {
+      const icon = fullscreenBtn.querySelector('i');
+      if (document.fullscreenElement) {
+        icon.className = 'fas fa-compress';
+        fullscreenBtn.title = 'Vollbild verlassen';
+      } else {
+        icon.className = 'fas fa-expand';
+        fullscreenBtn.title = 'Vollbild';
+      }
+    }
+  });
+});
+</script>
 {% endblock %}

templates/my_account.html

@@ -84,6 +84,23 @@
       </div>
     </div>
   </div>
+
+  <!-- Meine erstellten Mindmaps -->
+  <div class="mb-12">
+    <div class="flex justify-between items-center mb-4">
+      <h2 class="text-xl font-bold text-gray-800 dark:text-white flex items-center">
+        <i class="fas fa-brain mr-3 text-green-500"></i>
+        Meine erstellten Mindmaps
+      </h2>
+      <button id="create-mindmap-btn" class="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 transition-colors flex items-center">
+        <i class="fas fa-plus mr-2"></i> Neue Mindmap erstellen
+      </button>
+    </div>
+    <div id="user-mindmaps-container" class="space-y-4">
+      <!-- Hier werden die Mindmaps des Benutzers geladen -->
+      <p class="text-gray-600 dark:text-gray-400">Lade Mindmaps...</p>
+    </div>
+  </div>
   
   <!-- Gemerkte Inhalte -->
   <div class="grid grid-cols-1 md:grid-cols-2 gap-8 mb-8">
@@ -123,6 +140,431 @@
   </div>
 </div>
 
+<!-- Modal zum Erstellen einer neuen Mindmap -->
+<div id="create-mindmap-modal" class="fixed inset-0 bg-gray-600 bg-opacity-50 overflow-y-auto h-full w-full flex items-center justify-center hidden z-50">
+  <div class="relative mx-auto p-5 border w-full max-w-md shadow-lg rounded-md bg-white dark:bg-gray-800">
+    <div class="mt-3 text-center">
+      <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">Neue Mindmap erstellen</h3>
+      <div class="mt-2 px-7 py-3">
+        <form id="create-mindmap-form">
+          <div class="mb-4">
+            <label for="mindmap-name" class="block text-sm font-medium text-gray-700 dark:text-gray-300 text-left">Name</label>
+            <input type="text" name="name" id="mindmap-name" class="mt-1 block w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm dark:bg-gray-700 dark:text-white" required>
+          </div>
+          <div class="mb-4">
+            <label for="mindmap-description" class="block text-sm font-medium text-gray-700 dark:text-gray-300 text-left">Beschreibung (optional)</label>
+            <textarea name="description" id="mindmap-description" rows="3" class="mt-1 block w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm dark:bg-gray-700 dark:text-white"></textarea>
+          </div>
+        </form>
+      </div>
+      <div class="items-center px-4 py-3">
+        <button id="submit-create-mindmap" class="px-4 py-2 bg-green-500 text-white text-base font-medium rounded-md w-full shadow-sm hover:bg-green-600 focus:outline-none focus:ring-2 focus:ring-green-300">
+          Erstellen
+        </button>
+        <button id="cancel-create-mindmap" class="mt-2 px-4 py-2 bg-gray-300 text-gray-800 dark:bg-gray-600 dark:text-gray-200 text-base font-medium rounded-md w-full shadow-sm hover:bg-gray-400 dark:hover:bg-gray-500 focus:outline-none focus:ring-2 focus:ring-gray-300">
+          Abbrechen
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+
+<!-- JavaScript für persönliche Mindmap und CRUD -->
+<script>
+</script>
+<script nonce="{{ csp_nonce }}">
+  document.addEventListener('DOMContentLoaded', function() {
+    // Modal-Logik
+    const createMindmapBtn = document.getElementById('create-mindmap-btn');
+    const createMindmapModal = document.getElementById('create-mindmap-modal');
+    const cancelCreateMindmapBtn = document.getElementById('cancel-create-mindmap');
+    const submitCreateMindmapBtn = document.getElementById('submit-create-mindmap');
+    const createMindmapForm = document.getElementById('create-mindmap-form');
+
+    if (createMindmapBtn) {
+      createMindmapBtn.addEventListener('click', () => {
+        createMindmapModal.classList.remove('hidden');
+      });
+    }
+
+    if (cancelCreateMindmapBtn) {
+      cancelCreateMindmapBtn.addEventListener('click', () => {
+        createMindmapModal.classList.add('hidden');
+        createMindmapForm.reset();
+      });
+    }
+    
+    // Schließen bei Klick außerhalb des Modals
+    if (createMindmapModal) {
+        createMindmapModal.addEventListener('click', (event) => {
+            if (event.target === createMindmapModal) {
+                createMindmapModal.classList.add('hidden');
+                createMindmapForm.reset();
+            }
+        });
+    }
+
+    // Funktion zum Anzeigen von Benachrichtigungen
+    function showNotification(message, type = 'success') {
+        const notificationArea = document.getElementById('notification-area') || createNotificationArea();
+        const notificationId = `notif-${Date.now()}`;
+        constbgColor = type === 'success' ? 'bg-green-500' : (type === 'error' ? 'bg-red-500' : 'bg-blue-500');
+        
+        const notificationElement = `
+            <div id="${notificationId}" class="p-4 mb-4 text-sm text-white rounded-lg ${bgColor} animate-fadeIn" role="alert">
+                <span class="font-medium">${type.charAt(0).toUpperCase() + type.slice(1)}:</span> ${message}
+            </div>
+        `;
+        notificationArea.insertAdjacentHTML('beforeend', notificationElement);
+
+        setTimeout(() => {
+            const el = document.getElementById(notificationId);
+            if (el) {
+                el.classList.add('animate-fadeOut');
+                setTimeout(() => el.remove(), 500);
+            }
+        }, 5000);
+    }
+
+    function createNotificationArea() {
+        const area = document.createElement('div');
+        area.id = 'notification-area';
+        area.className = 'fixed top-5 right-5 z-50 w-auto max-w-sm';
+        document.body.appendChild(area);
+        // Add some basic animation styles
+        const style = document.createElement('style');
+        style.textContent = `
+            .animate-fadeIn { animation: fadeIn 0.5s ease-out; }
+            .animate-fadeOut { animation: fadeOut 0.5s ease-in forwards; }
+            @keyframes fadeIn { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
+            @keyframes fadeOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-20px); } }
+        `;
+        document.head.appendChild(style);
+        return area;
+    }
+
+
+    // CRUD-Funktionen für UserMindmaps
+    const mindmapsContainer = document.getElementById('user-mindmaps-container');
+
+    async function fetchUserMindmaps() {
+      if (!mindmapsContainer) return;
+      mindmapsContainer.innerHTML = '<p class="text-gray-600 dark:text-gray-400">Lade Mindmaps...</p>';
+      try {
+        const response = await fetch('/api/mindmaps');
+        if (!response.ok) {
+          throw new Error(`HTTP error! status: ${response.status}`);
+        }
+        const mindmaps = await response.json();
+        renderMindmaps(mindmaps);
+      } catch (error) {
+        console.error('Fehler beim Laden der Mindmaps:', error);
+        mindmapsContainer.innerHTML = '<p class="text-red-500">Fehler beim Laden der Mindmaps.</p>';
+        showNotification('Fehler beim Laden der Mindmaps.', 'error');
+      }
+    }
+
+    function renderMindmaps(mindmaps) {
+      if (!mindmapsContainer) return;
+      if (mindmaps.length === 0) {
+        mindmapsContainer.innerHTML = '<p class="text-gray-600 dark:text-gray-400">Du hast noch keine eigenen Mindmaps erstellt.</p>';
+        return;
+      }
+
+      mindmapsContainer.innerHTML = ''; // Container leeren
+      const ul = document.createElement('ul');
+      ul.className = 'space-y-3';
+
+      mindmaps.forEach(mindmap => {
+        const li = document.createElement('li');
+        li.className = 'p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all flex justify-between items-center';
+        
+        const mindmapLink = document.createElement('a');
+        mindmapLink.href = `/user_mindmap/${mindmap.id}`;
+        mindmapLink.className = 'flex-grow';
+        
+        const textDiv = document.createElement('div');
+        const nameH3 = document.createElement('h3');
+        nameH3.className = 'font-semibold text-gray-900 dark:text-white';
+        nameH3.textContent = mindmap.name;
+        textDiv.appendChild(nameH3);
+
+        if (mindmap.description) {
+          const descP = document.createElement('p');
+          descP.className = 'text-sm text-gray-600 dark:text-gray-400';
+          descP.textContent = mindmap.description;
+          textDiv.appendChild(descP);
+        }
+        mindmapLink.appendChild(textDiv);
+        li.appendChild(mindmapLink);
+
+        const actionsDiv = document.createElement('div');
+        actionsDiv.className = 'flex space-x-2 ml-4';
+
+        const editButton = document.createElement('a');
+        editButton.href = `/edit_mindmap/${mindmap.id}`; // oder JavaScript-basiertes Editieren
+        editButton.className = 'px-3 py-1 bg-blue-500 text-white rounded hover:bg-blue-600 text-sm flex items-center';
+        editButton.innerHTML = '<i class="fas fa-edit mr-1"></i> Bearbeiten';
+        // Hier könnte auch ein Event-Listener für ein Modal zum Bearbeiten hinzugefügt werden
+        // editButton.addEventListener('click', (e) => { e.preventDefault(); openEditModal(mindmap); });
+        actionsDiv.appendChild(editButton);
+        
+        const deleteButton = document.createElement('button');
+        deleteButton.className = 'px-3 py-1 bg-red-500 text-white rounded hover:bg-red-600 text-sm flex items-center delete-mindmap-btn';
+        deleteButton.innerHTML = '<i class="fas fa-trash mr-1"></i> Löschen';
+        deleteButton.dataset.mindmapId = mindmap.id;
+        actionsDiv.appendChild(deleteButton);
+
+        li.appendChild(actionsDiv);
+        ul.appendChild(li);
+      });
+      mindmapsContainer.appendChild(ul);
+
+      // Event Listener für Löschen-Buttons hinzufügen
+      document.querySelectorAll('.delete-mindmap-btn').forEach(button => {
+        button.addEventListener('click', async (event) => {
+          const mindmapId = event.currentTarget.dataset.mindmapId;
+          if (confirm('Bist du sicher, dass du diese Mindmap löschen möchtest?')) {
+            try {
+              const response = await fetch(`/api/mindmaps/${mindmapId}`, {
+                method: 'DELETE',
+                headers: {
+                  'Content-Type': 'application/json'
+                }
+              });
+              if (!response.ok) {
+                const errorData = await response.json();
+                throw new Error(errorData.error || `HTTP error! status: ${response.status}`);
+              }
+              showNotification('Mindmap erfolgreich gelöscht.', 'success');
+              fetchUserMindmaps(); // Liste aktualisieren
+            } catch (error) {
+              console.error('Fehler beim Löschen der Mindmap:', error);
+              showNotification(`Fehler beim Löschen: ${error.message}`, 'error');
+            }
+          }
+        });
+      });
+    }
+
+    if (submitCreateMindmapBtn) {
+      submitCreateMindmapBtn.addEventListener('click', async () => {
+        const name = document.getElementById('mindmap-name').value;
+        const description = document.getElementById('mindmap-description').value;
+
+        if (!name.trim()) {
+          showNotification('Der Name der Mindmap darf nicht leer sein.', 'error');
+          return;
+        }
+
+        try {
+          const response = await fetch('/api/mindmaps', {
+            method: 'POST',
+            headers: {
+              'Content-Type': 'application/json'
+            },
+            body: JSON.stringify({ name, description, is_private: false }), // is_private standardmäßig auf false setzen
+          });
+          if (!response.ok) {
+            const errorData = await response.json();
+            throw new Error(errorData.error || `HTTP error! status: ${response.status}`);
+          }
+          const newMindmap = await response.json();
+          showNotification(`Mindmap "${newMindmap.name}" erfolgreich erstellt. Weiterleitung...`, 'success');
+          createMindmapModal.classList.add('hidden');
+          createMindmapForm.reset();
+          // fetchUserMindmaps(); // Liste wird auf der neuen Seite ohnehin neu geladen oder ist nicht direkt sichtbar.
+          // Weiterleitung zur Bearbeitungsseite der neuen Mindmap
+          window.location.href = `/edit_mindmap/${newMindmap.id}`;
+        } catch (error) {
+          console.error('Fehler beim Erstellen der Mindmap:', error);
+          showNotification(`Fehler beim Erstellen: ${error.message}`, 'error');
+        }
+      });
+    }
+    
+    // Initiale Ladefunktion für Mindmaps
+    fetchUserMindmaps();
+
+    // Bestehendes Skript für Bookmarks etc.
+    // Lade gespeicherte Bookmarks aus dem LocalStorage
+    function loadBookmarkedNodes() {
+      try {
+        const bookmarked = localStorage.getItem('bookmarkedNodes');
+        return bookmarked ? JSON.parse(bookmarked) : [];
+      } catch (error) {
+        console.error('Fehler beim Laden der gemerkten Knoten:', error);
+        return [];
+      }
+    }
+    
+    const bookmarkedNodeIds = loadBookmarkedNodes();
+    
+    // Prüfe, ob es gemerkte Knoten gibt
+    if (bookmarkedNodeIds && bookmarkedNodeIds.length > 0) {
+      // Verstecke die Leer-Nachricht
+      const emptyMindmapMessage = document.getElementById('empty-mindmap-message');
+      if (emptyMindmapMessage) {
+        emptyMindmapMessage.style.display = 'none';
+      }
+      
+      // Initialisiere die persönliche Mindmap
+      const personalMindmapContainer = document.getElementById('personal-mindmap');
+      if (personalMindmapContainer && typeof MindMapVisualization !== 'undefined') {
+          const personalMindmap = new MindMapVisualization('#personal-mindmap', {
+            width: personalMindmapContainer.clientWidth,
+            height: 400,
+            nodeRadius: 18,
+            selectedNodeRadius: 22,
+            linkDistance: 120,
+            chargeStrength: -800,
+            centerForce: 0.1,
+            tooltipEnabled: true
+          });
+          
+          // Lade Daten für die Mindmap
+          window.setTimeout(() => {
+            if (window.mindmapInstance) {
+              const nodes = window.mindmapInstance.nodes.filter(node =>
+                bookmarkedNodeIds.includes(node.id)
+              );
+              const links = window.mindmapInstance.links.filter(link =>
+                bookmarkedNodeIds.includes(link.source.id || link.source) &&
+                bookmarkedNodeIds.includes(link.target.id || link.target)
+              );
+              personalMindmap.nodes = nodes;
+              personalMindmap.links = links;
+              personalMindmap.isLoading = false;
+              personalMindmap.updateVisualization();
+            } else {
+                 if (emptyMindmapMessage) emptyMindmapMessage.style.display = 'flex';
+            }
+          }, 800);
+      }
+      loadBookmarkedContent(bookmarkedNodeIds);
+    } else {
+      // Zeige Leerzustand an
+      const areasContainer = document.getElementById('bookmarked-areas-container');
+      const thoughtsContainer = document.getElementById('bookmarked-thoughts-container');
+      
+      if (areasContainer) {
+        areasContainer.innerHTML = `
+          <div class="empty-state">
+            <div class="text-4xl mb-2 opacity-20">
+              <i class="fas fa-folder-open"></i>
+            </div>
+            <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Wissensbereiche</p>
+          </div>
+        `;
+      }
+      
+      if (thoughtsContainer) {
+        thoughtsContainer.innerHTML = `
+          <div class="empty-state">
+            <div class="text-4xl mb-2 opacity-20">
+              <i class="fas fa-lightbulb"></i>
+            </div>
+            <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Gedanken</p>
+          </div>
+        `;
+      }
+    }
+  });
+  
+  // Funktion zum Laden der gemerkten Inhalte (bleibt größtenteils gleich)
+  function loadBookmarkedContent(nodeIds) {
+    if (!nodeIds || nodeIds.length === 0) return;
+    
+    const areasContainer = document.getElementById('bookmarked-areas-container');
+    const thoughtsContainer = document.getElementById('bookmarked-thoughts-container');
+    
+    const colors = ['purple', 'blue', 'green', 'indigo', 'amber'];
+    
+    if (areasContainer) areasContainer.innerHTML = '';
+    if (thoughtsContainer) thoughtsContainer.innerHTML = '';
+    
+    const areaTemplates = [
+      { name: 'Philosophie', description: 'Grundlagen philosophischen Denkens', count: 24 },
+      { name: 'Wissenschaft', description: 'Wissenschaftliche Methoden und Erkenntnisse', count: 42 },
+      { name: 'Technologie', description: 'Zukunftsweisende Technologien', count: 36 },
+      { name: 'Kunst', description: 'Künstlerische Ausdrucksformen', count: 18 },
+      { name: 'Psychologie', description: 'Menschliches Verhalten verstehen', count: 30 }
+    ];
+    
+    const thoughtTemplates = [
+      { title: 'Quantenphysik und Bewusstsein', author: 'Maria Schmidt', date: '12.04.2023' },
+      { title: 'Ethik in der künstlichen Intelligenz', author: 'Thomas Weber', date: '23.02.2023' },
+      { title: 'Die Rolle der Kunst in der Gesellschaft', author: 'Lena Müller', date: '05.06.2023' },
+      { title: 'Nachhaltige Entwicklung im 21. Jahrhundert', author: 'Michael Bauer', date: '18.08.2023' },
+      { title: 'Kognitive Verzerrungen im Alltag', author: 'Sophie Klein', date: '30.09.2023' }
+    ];
+    
+    const areaCount = Math.min(nodeIds.length, 5);
+    
+    if (areasContainer && areaCount > 0) {
+      for (let i = 0; i < areaCount; i++) {
+        const area = areaTemplates[i];
+        const colorClass = colors[i % colors.length];
+        areasContainer.innerHTML += `
+          <a href="{{ url_for('mindmap') }}" class="bookmark-item block p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all">
+            <div class="flex items-center">
+              <div class="w-10 h-10 rounded-lg bg-${colorClass}-100 dark:bg-${colorClass}-900/30 flex items-center justify-center mr-3">
+                <i class="fas fa-bookmark text-${colorClass}-500"></i>
+              </div>
+              <div class="flex-grow">
+                <h3 class="font-semibold text-gray-900 dark:text-white">${area.name}</h3>
+                <p class="text-sm text-gray-600 dark:text-gray-400">${area.description}</p>
+              </div>
+              <div class="text-xs text-gray-500 dark:text-gray-400">
+                ${area.count} Einträge
+              </div>
+            </div>
+          </a>
+        `;
+      }
+    } else if (areasContainer) {
+      areasContainer.innerHTML = `
+        <div class="empty-state">
+          <div class="text-4xl mb-2 opacity-20">
+            <i class="fas fa-folder-open"></i>
+          </div>
+          <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Wissensbereiche</p>
+        </div>
+      `;
+    }
+    
+    const thoughtCount = Math.min(nodeIds.length, 5);
+    
+    if (thoughtsContainer && thoughtCount > 0) {
+      for (let i = 0; i < thoughtCount; i++) {
+        const thought = thoughtTemplates[i];
+        const colorClass = colors[(i + 2) % colors.length];
+        thoughtsContainer.innerHTML += `
+          <a href="{{ url_for('mindmap') }}" class="bookmark-item block p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all">
+            <div class="flex items-center">
+              <div class="w-10 h-10 rounded-lg bg-${colorClass}-100 dark:bg-${colorClass}-900/30 flex items-center justify-center mr-3">
+                <i class="fas fa-lightbulb text-${colorClass}-500"></i>
+              </div>
+              <div class="flex-grow">
+                <h3 class="font-semibold text-gray-900 dark:text-white">${thought.title}</h3>
+                <p class="text-sm text-gray-600 dark:text-gray-400">Von ${thought.author} • ${thought.date}</p>
+              </div>
+            </div>
+          </a>
+        `;
+      }
+    } else if (thoughtsContainer) {
+      thoughtsContainer.innerHTML = `
+        <div class="empty-state">
+          <div class="text-4xl mb-2 opacity-20">
+            <i class="fas fa-lightbulb"></i>
+          </div>
+          <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Gedanken</p>
+        </div>
+      `;
+    }
+  }
+</script>
 <!-- JavaScript für persönliche Mindmap -->
 <script>
   document.addEventListener('DOMContentLoaded', function() {

templates/social/discover.html

@@ -0,0 +1,512 @@
+{% extends "base.html" %}
+
+{% block title %}Entdecken{% endblock %}
+
+{% block content %}
+<div class="min-h-screen"
+     x-data="{
+        activeTab: 'users',
+        users: [],
+        posts: [],
+        trending: [],
+        loading: false,
+        searchQuery: '',
+        searchResults: [],
+        searching: false,
+        
+        async loadUsers() {
+            this.loading = true;
+            try {
+                const response = await fetch('/api/discover/users');
+                const data = await response.json();
+                if (data.success) {
+                    this.users = data.users;
+                }
+            } catch (error) {
+                console.error('Error loading users:', error);
+            } finally {
+                this.loading = false;
+            }
+        },
+        
+        async loadPosts() {
+            this.loading = true;
+            try {
+                const response = await fetch('/api/discover/posts');
+                const data = await response.json();
+                if (data.success) {
+                    this.posts = data.posts;
+                }
+            } catch (error) {
+                console.error('Error loading posts:', error);
+            } finally {
+                this.loading = false;
+            }
+        },
+        
+        async loadTrending() {
+            this.loading = true;
+            try {
+                const response = await fetch('/api/discover/trending');
+                const data = await response.json();
+                if (data.success) {
+                    this.trending = data.trending;
+                }
+            } catch (error) {
+                console.error('Error loading trending:', error);
+            } finally {
+                this.loading = false;
+            }
+        },
+        
+        async follow(userId, index) {
+            try {
+                const response = await fetch(`/api/users/${userId}/follow`, {
+                    method: 'POST'
+                });
+                const data = await response.json();
+                
+                if (data.success) {
+                    this.users[index].is_following = data.is_following;
+                    this.users[index].follower_count = data.follower_count;
+                }
+            } catch (error) {
+                console.error('Error following user:', error);
+            }
+        },
+        
+        async searchUsers() {
+            if (!this.searchQuery.trim()) {
+                this.searchResults = [];
+                return;
+            }
+            
+            this.searching = true;
+            try {
+                const response = await fetch(`/api/search/users?q=${encodeURIComponent(this.searchQuery)}`);
+                const data = await response.json();
+                
+                if (data.success) {
+                    this.searchResults = data.users;
+                }
+            } catch (error) {
+                console.error('Error searching users:', error);
+            } finally {
+                this.searching = false;
+            }
+        },
+        
+        formatNumber(num) {
+            if (num >= 1000000) return (num / 1000000).toFixed(1) + 'M';
+            if (num >= 1000) return (num / 1000).toFixed(1) + 'K';
+            return num.toString();
+        },
+        
+        init() {
+            this.loadUsers();
+        }
+     }"
+     x-init="init()">
+
+    <!-- Header Section -->
+    <div class="border-b"
+         :class="darkMode ? 'border-gray-700 bg-gray-900/50' : 'border-gray-200 bg-white/50'">
+        <div class="max-w-6xl mx-auto px-4 py-6">
+            <div class="flex items-center justify-between mb-6">
+                <div>
+                    <h1 class="text-3xl font-bold"
+                        :class="darkMode ? 'text-white' : 'text-gray-900'">
+                        Entdecken
+                    </h1>
+                    <p class="text-lg mt-1"
+                       :class="darkMode ? 'text-gray-400' : 'text-gray-600'">
+                        Finde neue Leute und interessante Inhalte
+                    </p>
+                </div>
+                
+                <!-- Search Bar -->
+                <div class="flex-1 max-w-md ml-8">
+                    <div class="relative">
+                        <div class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                            <i class="fas fa-search"
+                               :class="darkMode ? 'text-gray-400' : 'text-gray-500'></i>
+                        </div>
+                        <input 
+                            x-model="searchQuery"
+                            @input.debounce.300ms="searchUsers()"
+                            type="text"
+                            class="block w-full pl-10 pr-3 py-3 border border-gray-300 rounded-xl leading-5 transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-purple-500/50 focus:border-purple-500"
+                            :class="darkMode 
+                            ? 'bg-gray-800 border-gray-600 text-white placeholder-gray-400' 
+                            : 'bg-white border-gray-300 text-gray-900 placeholder-gray-500'"
+                            placeholder="Nutzer suchen...">
+                    </div>
+                    
+                    <!-- Search Results Dropdown -->
+                    <div x-show="searchQuery && searchResults.length > 0"
+                         x-transition
+                         class="absolute z-50 mt-2 w-full rounded-xl shadow-lg border"
+                         :class="darkMode 
+                         ? 'bg-gray-800 border-gray-600' 
+                         : 'bg-white border-gray-200'">
+                        <template x-for="user in searchResults.slice(0, 5)">
+                            <div class="p-3 hover:bg-gray-50 transition-colors duration-150 cursor-pointer"
+                                 :class="darkMode ? 'hover:bg-gray-700' : 'hover:bg-gray-50'"
+                                 @click="window.location.href = `/profile/${user.username}`">
+                                <div class="flex items-center space-x-3">
+                                    <div class="w-10 h-10 rounded-full bg-gradient-to-br from-purple-500 to-indigo-600 flex items-center justify-center text-white font-semibold">
+                                        <span x-text="user.username.charAt(0).toUpperCase()"></span>
+                                    </div>
+                                    <div>
+                                        <p class="font-medium"
+                                           :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                           x-text="user.display_name || user.username"></p>
+                                        <p class="text-sm"
+                                           :class="darkMode ? 'text-gray-400' : 'text-gray-500'"
+                                           x-text="`@${user.username}`"></p>
+                                    </div>
+                                </div>
+                            </div>
+                        </template>
+                    </div>
+                </div>
+            </div>
+            
+            <!-- Tab Navigation -->
+            <div class="flex space-x-1 bg-gray-100 rounded-xl p-1"
+                 :class="darkMode ? 'bg-gray-800' : 'bg-gray-100'">
+                <button @click="activeTab = 'users'; loadUsers()"
+                        class="flex-1 px-4 py-2 rounded-lg font-medium transition-all duration-200"
+                        :class="activeTab === 'users' 
+                        ? (darkMode ? 'bg-purple-600 text-white shadow-lg' : 'bg-white text-purple-600 shadow-md') 
+                        : (darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900')">
+                    <i class="fas fa-users mr-2"></i>
+                    Nutzer
+                </button>
+                
+                <button @click="activeTab = 'posts'; loadPosts()"
+                        class="flex-1 px-4 py-2 rounded-lg font-medium transition-all duration-200"
+                        :class="activeTab === 'posts' 
+                        ? (darkMode ? 'bg-purple-600 text-white shadow-lg' : 'bg-white text-purple-600 shadow-md') 
+                        : (darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900')">
+                    <i class="fas fa-fire mr-2"></i>
+                    Beliebte Posts
+                </button>
+                
+                <button @click="activeTab = 'trending'; loadTrending()"
+                        class="flex-1 px-4 py-2 rounded-lg font-medium transition-all duration-200"
+                        :class="activeTab === 'trending' 
+                        ? (darkMode ? 'bg-purple-600 text-white shadow-lg' : 'bg-white text-purple-600 shadow-md') 
+                        : (darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900')">
+                    <i class="fas fa-trending-up mr-2"></i>
+                    Im Trend
+                </button>
+            </div>
+        </div>
+    </div>
+
+    <!-- Content Section -->
+    <div class="max-w-6xl mx-auto px-4 py-8">
+        
+        <!-- Loading State -->
+        <div x-show="loading" class="text-center py-16">
+            <div class="inline-flex items-center space-x-3"
+                 :class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+                <svg class="animate-spin h-8 w-8" fill="none" viewBox="0 0 24 24">
+                    <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                    <path class="opacity-75" fill="currentColor" d="m4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+                </svg>
+                <span class="text-lg">Lädt...</span>
+            </div>
+        </div>
+
+        <!-- Users Tab -->
+        <div x-show="activeTab === 'users' && !loading">
+            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+                <template x-for="(user, index) in users" :key="user.id">
+                    <div class="rounded-2xl p-6 shadow-lg border transition-all duration-300 hover:shadow-xl transform hover:scale-105"
+                         :class="darkMode 
+                         ? 'bg-gray-800/90 border-gray-700/50 backdrop-blur-xl' 
+                         : 'bg-white/80 border-gray-200/50 backdrop-blur-xl'">
+                        
+                        <!-- User Avatar -->
+                        <div class="text-center mb-4">
+                            <div class="w-20 h-20 rounded-full bg-gradient-to-br from-purple-500 to-indigo-600 flex items-center justify-center text-white font-bold text-2xl mx-auto shadow-lg">
+                                <span x-text="user.username.charAt(0).toUpperCase()"></span>
+                            </div>
+                        </div>
+                        
+                        <!-- User Info -->
+                        <div class="text-center mb-4">
+                            <h3 class="text-xl font-bold mb-1"
+                                :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                x-text="user.display_name || user.username"></h3>
+                            <p class="text-sm mb-2"
+                               :class="darkMode ? 'text-gray-400' : 'text-gray-500'"
+                               x-text="`@${user.username}`"></p>
+                            
+                            <div x-show="user.bio" class="mb-3">
+                                <p class="text-sm"
+                                   :class="darkMode ? 'text-gray-300' : 'text-gray-700'"
+                                   x-text="user.bio"></p>
+                            </div>
+                        </div>
+                        
+                        <!-- User Stats -->
+                        <div class="flex justify-center space-x-6 mb-4">
+                            <div class="text-center">
+                                <div class="text-lg font-bold"
+                                     :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                     x-text="formatNumber(user.follower_count || 0)"></div>
+                                <div class="text-xs"
+                                     :class="darkMode ? 'text-gray-400' : 'text-gray-500'">
+                                    Follower
+                                </div>
+                            </div>
+                            <div class="text-center">
+                                <div class="text-lg font-bold"
+                                     :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                     x-text="formatNumber(user.following_count || 0)"></div>
+                                <div class="text-xs"
+                                     :class="darkMode ? 'text-gray-400' : 'text-gray-500'">
+                                    Folge ich
+                                </div>
+                            </div>
+                            <div class="text-center">
+                                <div class="text-lg font-bold"
+                                     :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                     x-text="formatNumber(user.post_count || 0)"></div>
+                                <div class="text-xs"
+                                     :class="darkMode ? 'text-gray-400' : 'text-gray-500'">
+                                    Posts
+                                </div>
+                            </div>
+                        </div>
+                        
+                        <!-- Action Buttons -->
+                        <div class="flex space-x-2">
+                            <button @click="follow(user.id, index)"
+                                    class="flex-1 py-2 px-4 rounded-xl font-semibold transition-all duration-300 transform hover:scale-105"
+                                    :class="user.is_following 
+                                    ? (darkMode ? 'bg-gray-700 text-white border border-gray-600 hover:bg-gray-600' : 'bg-gray-100 text-gray-700 border border-gray-300 hover:bg-gray-200') 
+                                    : 'bg-gradient-to-r from-purple-500 to-indigo-500 text-white shadow-md hover:shadow-lg'">
+                                <span x-text="user.is_following ? 'Entfolgen' : 'Folgen'"></span>
+                            </button>
+                            
+                            <button @click="window.location.href = `/profile/${user.username}`"
+                                    class="px-4 py-2 rounded-xl transition-all duration-300 transform hover:scale-105"
+                                    :class="darkMode 
+                                    ? 'bg-gray-700 text-white border border-gray-600 hover:bg-gray-600' 
+                                    : 'bg-gray-100 text-gray-700 border border-gray-300 hover:bg-gray-200'">
+                                <i class="fas fa-user"></i>
+                            </button>
+                        </div>
+                    </div>
+                </template>
+            </div>
+            
+            <!-- Empty State for Users -->
+            <div x-show="!loading && users.length === 0" class="text-center py-16">
+                <div class="mb-6">
+                    <i class="fas fa-users text-6xl mb-4"
+                       :class="darkMode ? 'text-gray-600' : 'text-gray-300'"></i>
+                </div>
+                <h3 class="text-2xl font-bold mb-2"
+                    :class="darkMode ? 'text-white' : 'text-gray-900'">
+                    Keine Nutzer gefunden
+                </h3>
+                <p class="text-lg"
+                   :class="darkMode ? 'text-gray-400' : 'text-gray-600'">
+                    Versuche es später noch einmal oder ändere deine Suchkriterien.
+                </p>
+            </div>
+        </div>
+
+        <!-- Popular Posts Tab -->
+        <div x-show="activeTab === 'posts' && !loading">
+            <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
+                <template x-for="post in posts" :key="post.id">
+                    <article class="rounded-2xl p-6 shadow-lg border transition-all duration-300 hover:shadow-xl"
+                             :class="darkMode 
+                             ? 'bg-gray-800/90 border-gray-700/50 backdrop-blur-xl' 
+                             : 'bg-white/80 border-gray-200/50 backdrop-blur-xl'">
+                        
+                        <!-- Post Header -->
+                        <div class="flex items-center space-x-3 mb-4">
+                            <div class="w-12 h-12 rounded-full bg-gradient-to-br from-purple-500 to-indigo-600 flex items-center justify-center text-white font-semibold text-lg shadow-md">
+                                <span x-text="post.author.username.charAt(0).toUpperCase()"></span>
+                            </div>
+                            
+                            <div class="flex-1 min-w-0">
+                                <div class="flex items-center space-x-2">
+                                    <h4 class="font-semibold truncate"
+                                        :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                        x-text="post.author.display_name || post.author.username"></h4>
+                                    <span x-show="post.author.is_verified" 
+                                          class="text-blue-500">
+                                        <i class="fas fa-check-circle text-sm"></i>
+                                    </span>
+                                </div>
+                                <p class="text-sm"
+                                   :class="darkMode ? 'text-gray-400' : 'text-gray-500'"
+                                   x-text="formatTimeAgo(post.created_at)"></p>
+                            </div>
+                            
+                            <div class="flex items-center space-x-2">
+                                <div class="flex items-center space-x-1 text-sm px-2 py-1 rounded-full"
+                                     :class="darkMode ? 'bg-red-500/20 text-red-400' : 'bg-red-50 text-red-500'">
+                                    <i class="fas fa-fire"></i>
+                                    <span>Trending</span>
+                                </div>
+                            </div>
+                        </div>
+                        
+                        <!-- Post Content -->
+                        <div class="mb-4">
+                            <p class="text-lg leading-relaxed"
+                               :class="darkMode ? 'text-gray-100' : 'text-gray-800'"
+                               x-text="post.content"></p>
+                        </div>
+                        
+                        <!-- Post Stats -->
+                        <div class="flex items-center space-x-6 text-sm"
+                             :class="darkMode ? 'text-gray-400' : 'text-gray-500'">
+                            <div class="flex items-center space-x-1">
+                                <i class="fas fa-heart"></i>
+                                <span x-text="formatNumber(post.like_count || 0)"></span>
+                            </div>
+                            
+                            <div class="flex items-center space-x-1">
+                                <i class="far fa-comment"></i>
+                                <span x-text="formatNumber(post.comment_count || 0)"></span>
+                            </div>
+                            
+                            <div class="flex items-center space-x-1">
+                                <i class="fas fa-share"></i>
+                                <span x-text="formatNumber(post.share_count || 0)"></span>
+                            </div>
+                        </div>
+                    </article>
+                </template>
+            </div>
+            
+            <!-- Empty State for Posts -->
+            <div x-show="!loading && posts.length === 0" class="text-center py-16">
+                <div class="mb-6">
+                    <i class="fas fa-fire text-6xl mb-4"
+                       :class="darkMode ? 'text-gray-600' : 'text-gray-300'"></i>
+                </div>
+                <h3 class="text-2xl font-bold mb-2"
+                    :class="darkMode ? 'text-white' : 'text-gray-900'">
+                    Keine beliebten Posts
+                </h3>
+                <p class="text-lg"
+                   :class="darkMode ? 'text-gray-400' : 'text-gray-600'">
+                    Noch keine Posts sind viral gegangen. Sei der Erste!
+                </p>
+            </div>
+        </div>
+
+        <!-- Trending Tab -->
+        <div x-show="activeTab === 'trending' && !loading">
+            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+                <template x-for="item in trending" :key="item.id">
+                    <div class="rounded-2xl p-6 shadow-lg border transition-all duration-300 hover:shadow-xl transform hover:scale-105"
+                         :class="darkMode 
+                         ? 'bg-gray-800/90 border-gray-700/50 backdrop-blur-xl' 
+                         : 'bg-white/80 border-gray-200/50 backdrop-blur-xl'">
+                        
+                        <div class="flex items-center space-x-3 mb-4">
+                            <div class="w-12 h-12 rounded-full bg-gradient-to-br from-orange-500 to-red-500 flex items-center justify-center text-white shadow-md">
+                                <i class="fas fa-hashtag text-lg"></i>
+                            </div>
+                            
+                            <div class="flex-1">
+                                <h3 class="font-bold text-lg"
+                                    :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                    x-text="item.title"></h3>
+                                <p class="text-sm"
+                                   :class="darkMode ? 'text-gray-400' : 'text-gray-500'"
+                                   x-text="`${formatNumber(item.count)} Posts`"></p>
+                            </div>
+                            
+                            <div class="flex items-center space-x-1 text-sm px-2 py-1 rounded-full"
+                                 :class="darkMode ? 'bg-orange-500/20 text-orange-400' : 'bg-orange-50 text-orange-500'">
+                                <i class="fas fa-trending-up"></i>
+                                <span x-text="`+${item.growth}%`"></span>
+                            </div>
+                        </div>
+                        
+                        <div x-show="item.description" class="mb-4">
+                            <p class="text-sm"
+                               :class="darkMode ? 'text-gray-300' : 'text-gray-700'"
+                               x-text="item.description"></p>
+                        </div>
+                        
+                        <button class="w-full py-2 px-4 rounded-xl font-semibold transition-all duration-300 transform hover:scale-105"
+                                :class="darkMode 
+                                ? 'bg-gray-700 text-white border border-gray-600 hover:bg-gray-600' 
+                                : 'bg-gray-100 text-gray-700 border border-gray-300 hover:bg-gray-200'">
+                            Erkunden
+                        </button>
+                    </div>
+                </template>
+            </div>
+            
+            <!-- Empty State for Trending -->
+            <div x-show="!loading && trending.length === 0" class="text-center py-16">
+                <div class="mb-6">
+                    <i class="fas fa-trending-up text-6xl mb-4"
+                       :class="darkMode ? 'text-gray-600' : 'text-gray-300'"></i>
+                </div>
+                <h3 class="text-2xl font-bold mb-2"
+                    :class="darkMode ? 'text-white' : 'text-gray-900'">
+                    Noch nichts im Trend
+                </h3>
+                <p class="text-lg"
+                   :class="darkMode ? 'text-gray-400' : 'text-gray-600'">
+                    Sei der Erste, der etwas Trending macht!
+                </p>
+            </div>
+        </div>
+    </div>
+
+    <!-- Quick Actions Floating Button -->
+    <div class="fixed bottom-6 right-6 z-40">
+        <div class="relative group">
+            <!-- Main FAB -->
+            <button class="w-14 h-14 rounded-full bg-gradient-to-r from-purple-500 to-indigo-500 text-white shadow-lg hover:shadow-xl transition-all duration-300 transform hover:scale-110 focus:outline-none focus:ring-2 focus:ring-purple-500/50">
+                <i class="fas fa-plus text-xl"></i>
+            </button>
+            
+            <!-- Action Menu -->
+            <div class="absolute bottom-16 right-0 opacity-0 group-hover:opacity-100 transition-all duration-300 transform scale-95 group-hover:scale-100 space-y-2">
+                <a href="{{ url_for('social_feed') }}" 
+                   class="flex items-center justify-center w-12 h-12 rounded-full bg-blue-500 text-white shadow-lg hover:shadow-xl transition-all duration-300 transform hover:scale-110"
+                   title="Zum Feed">
+                    <i class="fas fa-stream"></i>
+                </a>
+                
+                <button class="flex items-center justify-center w-12 h-12 rounded-full bg-green-500 text-white shadow-lg hover:shadow-xl transition-all duration-300 transform hover:scale-110"
+                        title="Post erstellen">
+                    <i class="fas fa-edit"></i>
+                </button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+// Helper function for time formatting
+function formatTimeAgo(dateString) {
+    const date = new Date(dateString);
+    const now = new Date();
+    const diffInSeconds = Math.floor((now - date) / 1000);
+    
+    if (diffInSeconds < 60) return 'vor wenigen Sekunden';
+    if (diffInSeconds < 3600) return `vor ${Math.floor(diffInSeconds / 60)} Min`;
+    if (diffInSeconds < 86400) return `vor ${Math.floor(diffInSeconds / 3600)} Std`;
+    return `vor ${Math.floor(diffInSeconds / 86400)} Tagen`;
+}
+</script>
+{% endblock %} 

templates/social/feed.html

@@ -0,0 +1,327 @@
+{% extends "base.html" %}
+
+{% block title %}Feed{% endblock %}
+
+{% block content %}
+<div class="min-h-screen" 
+     x-data="{ 
+        posts: [], 
+        loading: false, 
+        page: 1, 
+        hasMore: true,
+        newPostContent: '',
+        isPosting: false,
+        
+        async loadPosts() {
+            if (this.loading || !this.hasMore) return;
+            
+            this.loading = true;
+            try {
+                const response = await fetch(`/api/feed?page=${this.page}&per_page=10`);
+                const data = await response.json();
+                
+                if (data.success) {
+                    if (this.page === 1) {
+                        this.posts = data.posts;
+                    } else {
+                        this.posts = [...this.posts, ...data.posts];
+                    }
+                    this.hasMore = data.has_next;
+                    this.page++;
+                }
+            } catch (error) {
+                console.error('Error loading posts:', error);
+            } finally {
+                this.loading = false;
+            }
+        },
+        
+        async createPost() {
+            if (!this.newPostContent.trim() || this.isPosting) return;
+            
+            this.isPosting = true;
+            try {
+                const response = await fetch('/api/posts', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({
+                        content: this.newPostContent
+                    })
+                });
+                
+                const data = await response.json();
+                if (data.success) {
+                    this.posts.unshift(data.post);
+                    this.newPostContent = '';
+                }
+            } catch (error) {
+                console.error('Error creating post:', error);
+            } finally {
+                this.isPosting = false;
+            }
+        },
+        
+        async toggleLike(postId, index) {
+            try {
+                const response = await fetch(`/api/posts/${postId}/like`, {
+                    method: 'POST'
+                });
+                const data = await response.json();
+                
+                if (data.success) {
+                    this.posts[index].like_count = data.like_count;
+                    this.posts[index].is_liked = data.is_liked;
+                }
+            } catch (error) {
+                console.error('Error toggling like:', error);
+            }
+        },
+        
+        formatTimeAgo(dateString) {
+            const date = new Date(dateString);
+            const now = new Date();
+            const diffInSeconds = Math.floor((now - date) / 1000);
+            
+            if (diffInSeconds < 60) return 'vor wenigen Sekunden';
+            if (diffInSeconds < 3600) return `vor ${Math.floor(diffInSeconds / 60)} Min`;
+            if (diffInSeconds < 86400) return `vor ${Math.floor(diffInSeconds / 3600)} Std`;
+            return `vor ${Math.floor(diffInSeconds / 86400)} Tagen`;
+        },
+        
+        init() {
+            this.loadPosts();
+        }
+     }"
+     x-init="init()">
+
+    <!-- Main Container -->
+    <div class="max-w-2xl mx-auto px-4 py-6 space-y-6">
+        
+        <!-- Post Composer -->
+        <div class="rounded-2xl p-6 shadow-lg border transition-all duration-300"
+             :class="darkMode 
+             ? 'bg-gray-800/90 border-gray-700/50 backdrop-blur-xl' 
+             : 'bg-white/80 border-gray-200/50 backdrop-blur-xl'">
+            
+            <!-- User Avatar and Input -->
+            <div class="flex items-start space-x-4">
+                <div class="flex-shrink-0">
+                    <div class="w-12 h-12 rounded-full bg-gradient-to-br from-purple-500 to-indigo-600 flex items-center justify-center text-white font-semibold text-lg shadow-md">
+                        {{ current_user.username[0].upper() }}
+                    </div>
+                </div>
+                
+                <div class="flex-1">
+                    <textarea 
+                        x-model="newPostContent"
+                        @keydown.meta.enter="createPost()"
+                        @keydown.ctrl.enter="createPost()"
+                        class="w-full resize-none border-0 focus:ring-0 text-lg placeholder-gray-400 transition-all duration-200"
+                        :class="darkMode 
+                        ? 'bg-transparent text-white' 
+                        : 'bg-transparent text-gray-900'"
+                        placeholder="Was beschäftigt dich heute?"
+                        rows="3"></textarea>
+                </div>
+            </div>
+            
+            <!-- Post Actions -->
+            <div class="mt-4 pt-4 border-t flex items-center justify-between"
+                 :class="darkMode ? 'border-gray-700' : 'border-gray-200'">
+                
+                <div class="flex items-center space-x-4">
+                    <button class="flex items-center space-x-2 px-3 py-2 rounded-lg transition-all duration-200"
+                            :class="darkMode 
+                            ? 'text-gray-300 hover:bg-gray-700/50' 
+                            : 'text-gray-500 hover:bg-gray-100'">
+                        <i class="fas fa-image text-lg"></i>
+                        <span class="text-sm font-medium">Foto</span>
+                    </button>
+                    
+                    <button class="flex items-center space-x-2 px-3 py-2 rounded-lg transition-all duration-200"
+                            :class="darkMode 
+                            ? 'text-gray-300 hover:bg-gray-700/50' 
+                            : 'text-gray-500 hover:bg-gray-100'">
+                        <i class="fas fa-brain text-lg"></i>
+                        <span class="text-sm font-medium">Gedanken</span>
+                    </button>
+                </div>
+                
+                <button @click="createPost()"
+                        :disabled="!newPostContent.trim() || isPosting"
+                        class="px-6 py-2.5 rounded-xl font-semibold transition-all duration-300 transform hover:scale-105 focus:outline-none focus:ring-2 focus:ring-purple-500/50 disabled:opacity-50 disabled:cursor-not-allowed disabled:transform-none"
+                        :class="darkMode 
+                        ? 'bg-gradient-to-r from-purple-600 to-indigo-600 text-white shadow-lg hover:shadow-xl' 
+                        : 'bg-gradient-to-r from-purple-500 to-indigo-500 text-white shadow-md hover:shadow-lg'">
+                    <span x-show="!isPosting">Teilen</span>
+                    <span x-show="isPosting" class="flex items-center space-x-2">
+                        <svg class="animate-spin h-4 w-4" fill="none" viewBox="0 0 24 24">
+                            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                            <path class="opacity-75" fill="currentColor" d="m4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+                        </svg>
+                        <span>Poste...</span>
+                    </span>
+                </button>
+            </div>
+        </div>
+
+        <!-- Posts Feed -->
+        <div class="space-y-6">
+            <!-- Loading State -->
+            <div x-show="loading && posts.length === 0" 
+                 class="text-center py-12">
+                <div class="inline-flex items-center space-x-3"
+                     :class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+                    <svg class="animate-spin h-6 w-6" fill="none" viewBox="0 0 24 24">
+                        <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                        <path class="opacity-75" fill="currentColor" d="m4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+                    </svg>
+                    <span class="text-lg">Lade Posts...</span>
+                </div>
+            </div>
+
+            <!-- Empty State -->
+            <div x-show="!loading && posts.length === 0" 
+                 class="text-center py-16">
+                <div class="mb-6">
+                    <i class="fas fa-stream text-6xl mb-4"
+                       :class="darkMode ? 'text-gray-600' : 'text-gray-300'"></i>
+                </div>
+                <h3 class="text-2xl font-bold mb-2"
+                    :class="darkMode ? 'text-white' : 'text-gray-900'">
+                    Noch keine Posts
+                </h3>
+                <p class="text-lg mb-6"
+                   :class="darkMode ? 'text-gray-400' : 'text-gray-600'">
+                    Folge anderen Nutzern oder erstelle deinen ersten Post!
+                </p>
+                <a href="{{ url_for('discover') }}" 
+                   class="inline-flex items-center space-x-2 px-6 py-3 rounded-xl font-semibold transition-all duration-300 bg-gradient-to-r from-purple-500 to-indigo-500 text-white shadow-lg hover:shadow-xl transform hover:scale-105">
+                    <i class="fas fa-compass"></i>
+                    <span>Entdecken</span>
+                </a>
+            </div>
+
+            <!-- Posts -->
+            <template x-for="(post, index) in posts" :key="post.id">
+                <article class="rounded-2xl p-6 shadow-lg border transition-all duration-300 hover:shadow-xl"
+                         :class="darkMode 
+                         ? 'bg-gray-800/90 border-gray-700/50 backdrop-blur-xl' 
+                         : 'bg-white/80 border-gray-200/50 backdrop-blur-xl'">
+                    
+                    <!-- Post Header -->
+                    <div class="flex items-center space-x-3 mb-4">
+                        <div class="w-12 h-12 rounded-full bg-gradient-to-br from-purple-500 to-indigo-600 flex items-center justify-center text-white font-semibold text-lg shadow-md">
+                            <span x-text="post.author.username.charAt(0).toUpperCase()"></span>
+                        </div>
+                        
+                        <div class="flex-1 min-w-0">
+                            <div class="flex items-center space-x-2">
+                                <h4 class="font-semibold truncate"
+                                    :class="darkMode ? 'text-white' : 'text-gray-900'"
+                                    x-text="post.author.display_name || post.author.username"></h4>
+                                <span x-show="post.author.is_verified" 
+                                      class="text-blue-500">
+                                    <i class="fas fa-check-circle text-sm"></i>
+                                </span>
+                            </div>
+                            <p class="text-sm"
+                               :class="darkMode ? 'text-gray-400' : 'text-gray-500'"
+                               x-text="formatTimeAgo(post.created_at)"></p>
+                        </div>
+                        
+                        <button class="p-2 rounded-lg transition-all duration-200"
+                                :class="darkMode 
+                                ? 'text-gray-400 hover:bg-gray-700/50' 
+                                : 'text-gray-400 hover:bg-gray-100'">
+                            <i class="fas fa-ellipsis-h"></i>
+                        </button>
+                    </div>
+                    
+                    <!-- Post Content -->
+                    <div class="mb-4">
+                        <p class="text-lg leading-relaxed whitespace-pre-wrap"
+                           :class="darkMode ? 'text-gray-100' : 'text-gray-800'"
+                           x-text="post.content"></p>
+                    </div>
+                    
+                    <!-- Post Actions -->
+                    <div class="flex items-center justify-between pt-4 border-t"
+                         :class="darkMode ? 'border-gray-700' : 'border-gray-200'">
+                        
+                        <div class="flex items-center space-x-6">
+                            <button @click="toggleLike(post.id, index)"
+                                    class="flex items-center space-x-2 px-3 py-2 rounded-lg transition-all duration-200 group"
+                                    :class="post.is_liked 
+                                    ? (darkMode ? 'text-red-400 bg-red-500/10' : 'text-red-500 bg-red-50') 
+                                    : (darkMode ? 'text-gray-400 hover:bg-gray-700/50' : 'text-gray-500 hover:bg-gray-100')">
+                                <i class="fas fa-heart transition-transform duration-200 group-hover:scale-110"
+                                   :class="post.is_liked ? 'fas' : 'far'"></i>
+                                <span class="text-sm font-medium" x-text="post.like_count || 0"></span>
+                            </button>
+                            
+                            <button class="flex items-center space-x-2 px-3 py-2 rounded-lg transition-all duration-200"
+                                    :class="darkMode 
+                                    ? 'text-gray-400 hover:bg-gray-700/50' 
+                                    : 'text-gray-500 hover:bg-gray-100'">
+                                <i class="far fa-comment"></i>
+                                <span class="text-sm font-medium" x-text="post.comment_count || 0"></span>
+                            </button>
+                            
+                            <button class="flex items-center space-x-2 px-3 py-2 rounded-lg transition-all duration-200"
+                                    :class="darkMode 
+                                    ? 'text-gray-400 hover:bg-gray-700/50' 
+                                    : 'text-gray-500 hover:bg-gray-100'">
+                                <i class="fas fa-share"></i>
+                                <span class="text-sm font-medium" x-text="post.share_count || 0"></span>
+                            </button>
+                        </div>
+                        
+                        <button class="p-2 rounded-lg transition-all duration-200"
+                                :class="darkMode 
+                                ? 'text-gray-400 hover:bg-gray-700/50' 
+                                : 'text-gray-400 hover:bg-gray-100'">
+                            <i class="far fa-bookmark"></i>
+                        </button>
+                    </div>
+                </article>
+            </template>
+        </div>
+
+        <!-- Load More Button -->
+        <div x-show="hasMore && !loading && posts.length > 0" 
+             class="text-center py-6">
+            <button @click="loadPosts()"
+                    class="px-8 py-3 rounded-xl font-semibold transition-all duration-300 transform hover:scale-105"
+                    :class="darkMode 
+                    ? 'bg-gray-800 text-white border border-gray-700 hover:bg-gray-700' 
+                    : 'bg-white text-gray-700 border border-gray-200 hover:bg-gray-50'"
+                    :disabled="loading">
+                <span x-show="!loading">Mehr laden</span>
+                <span x-show="loading" class="flex items-center space-x-2">
+                    <svg class="animate-spin h-4 w-4" fill="none" viewBox="0 0 24 24">
+                        <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                        <path class="opacity-75" fill="currentColor" d="m4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+                    </svg>
+                    <span>Lade...</span>
+                </span>
+            </button>
+        </div>
+
+        <!-- Loading More Posts -->
+        <div x-show="loading && posts.length > 0" 
+             class="text-center py-6">
+            <div class="inline-flex items-center space-x-3"
+                 :class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+                <svg class="animate-spin h-5 w-5" fill="none" viewBox="0 0 24 24">
+                    <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                    <path class="opacity-75" fill="currentColor" d="m4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+                </svg>
+                <span>Lade weitere Posts...</span>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock %} 

templates/social/notifications.html

@@ -0,0 +1,381 @@
+{% extends "base.html" %}
+{% block title %}Benachrichtigungen - SysTades{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+    <!-- Header -->
+    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-lg p-6 mb-6">
+        <div class="flex items-center justify-between">
+            <h1 class="text-3xl font-bold text-gray-900 dark:text-white">🔔 Benachrichtigungen</h1>
+            <button id="mark-all-read" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors">
+                Alle als gelesen markieren
+            </button>
+        </div>
+    </div>
+    
+    <!-- Filter Tabs -->
+    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-lg mb-6">
+        <div class="border-b border-gray-200 dark:border-gray-600">
+            <nav class="flex space-x-8 px-6">
+                <button class="filter-btn active py-4 px-2 border-b-2 border-blue-500 font-medium text-blue-600 dark:text-blue-400" data-filter="all">
+                    📥 Alle
+                </button>
+                <button class="filter-btn py-4 px-2 border-b-2 border-transparent font-medium text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200" data-filter="unread">
+                    🔴 Ungelesen
+                </button>
+                <button class="filter-btn py-4 px-2 border-b-2 border-transparent font-medium text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200" data-filter="likes">
+                    ❤️ Likes
+                </button>
+                <button class="filter-btn py-4 px-2 border-b-2 border-transparent font-medium text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200" data-filter="comments">
+                    💬 Kommentare
+                </button>
+                <button class="filter-btn py-4 px-2 border-b-2 border-transparent font-medium text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200" data-filter="follows">
+                    👥 Follows
+                </button>
+            </nav>
+        </div>
+    </div>
+    
+    <!-- Notifications Container -->
+    <div id="notifications-container" class="space-y-4">
+        <!-- Notifications werden hier geladen -->
+    </div>
+    
+    <!-- Load More Button -->
+    <div class="text-center mt-8">
+        <button id="load-more" class="px-6 py-3 bg-gray-600 text-white rounded-lg hover:bg-gray-700 transition-colors">
+            Mehr laden
+        </button>
+    </div>
+</div>
+
+<script>
+class NotificationCenter {
+    constructor() {
+        this.currentFilter = 'all';
+        this.currentPage = 1;
+        this.isLoading = false;
+        this.hasMore = true;
+        
+        this.initializeEventListeners();
+        this.loadNotifications();
+    }
+    
+    initializeEventListeners() {
+        // Filter buttons
+        document.querySelectorAll('.filter-btn').forEach(btn => {
+            btn.addEventListener('click', (e) => {
+                const filter = e.target.dataset.filter;
+                this.switchFilter(filter);
+            });
+        });
+        
+        // Mark all as read
+        document.getElementById('mark-all-read').addEventListener('click', () => {
+            this.markAllAsRead();
+        });
+        
+        // Load more
+        document.getElementById('load-more').addEventListener('click', () => {
+            this.loadMoreNotifications();
+        });
+    }
+    
+    switchFilter(filter) {
+        this.currentFilter = filter;
+        this.currentPage = 1;
+        this.hasMore = true;
+        
+        // Update filter buttons
+        document.querySelectorAll('.filter-btn').forEach(btn => {
+            btn.classList.remove('active', 'border-blue-500', 'text-blue-600', 'dark:text-blue-400');
+            btn.classList.add('border-transparent', 'text-gray-500', 'dark:text-gray-400');
+        });
+        
+        const activeBtn = document.querySelector(`[data-filter="${filter}"]`);
+        activeBtn.classList.add('active', 'border-blue-500', 'text-blue-600', 'dark:text-blue-400');
+        activeBtn.classList.remove('border-transparent', 'text-gray-500', 'dark:text-gray-400');
+        
+        this.loadNotifications();
+    }
+    
+    async loadNotifications() {
+        if (this.isLoading) return;
+        
+        this.isLoading = true;
+        
+        try {
+            const params = new URLSearchParams({
+                page: this.currentPage,
+                per_page: 20,
+                filter: this.currentFilter
+            });
+            
+            const response = await fetch(`/api/social/notifications?${params}`);
+            const result = await response.json();
+            
+            if (result.success) {
+                if (this.currentPage === 1) {
+                    document.getElementById('notifications-container').innerHTML = '';
+                }
+                
+                this.renderNotifications(result.notifications);
+                this.hasMore = result.has_more;
+                this.updateLoadMoreButton();
+            } else {
+                this.showMessage('Fehler beim Laden der Benachrichtigungen', 'error');
+            }
+        } catch (error) {
+            console.error('Error loading notifications:', error);
+            this.showMessage('Fehler beim Laden der Benachrichtigungen', 'error');
+        } finally {
+            this.isLoading = false;
+        }
+    }
+    
+    async loadMoreNotifications() {
+        if (!this.hasMore || this.isLoading) return;
+        
+        this.currentPage++;
+        await this.loadNotifications();
+    }
+    
+    renderNotifications(notifications) {
+        const container = document.getElementById('notifications-container');
+        
+        if (notifications.length === 0 && this.currentPage === 1) {
+            container.innerHTML = `
+                <div class="text-center py-12">
+                    <div class="text-6xl mb-4">📭</div>
+                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-2">Keine Benachrichtigungen</h3>
+                    <p class="text-gray-600 dark:text-gray-300">
+                        ${this.currentFilter === 'unread' ? 'Alle Benachrichtigungen sind gelesen!' : 'Hier werden deine Benachrichtigungen angezeigt.'}
+                    </p>
+                </div>
+            `;
+            return;
+        }
+        
+        notifications.forEach(notification => {
+            const notificationElement = this.createNotificationElement(notification);
+            container.appendChild(notificationElement);
+        });
+    }
+    
+    createNotificationElement(notification) {
+        const element = document.createElement('div');
+        element.className = `notification-item bg-white dark:bg-gray-800 rounded-lg shadow-lg p-6 ${
+            !notification.is_read ? 'border-l-4 border-blue-500' : ''
+        }`;
+        element.dataset.notificationId = notification.id;
+        
+        const typeIcons = {
+            'like': '❤️',
+            'comment': '💬',
+            'follow': '👥',
+            'mention': '📢',
+            'system': '🔔'
+        };
+        
+        element.innerHTML = `
+            <div class="flex items-start space-x-4">
+                <div class="flex-shrink-0">
+                    <div class="w-12 h-12 bg-gradient-to-r from-blue-500 to-purple-600 rounded-full flex items-center justify-center text-white text-xl">
+                        ${typeIcons[notification.type] || '🔔'}
+                    </div>
+                </div>
+                
+                <div class="flex-1 min-w-0">
+                    <div class="flex items-start justify-between">
+                        <div class="flex-1">
+                            <p class="text-gray-900 dark:text-white font-medium">
+                                ${notification.message}
+                            </p>
+                            <p class="text-sm text-gray-500 dark:text-gray-400 mt-1">
+                                ${this.formatDate(notification.created_at)}
+                            </p>
+                        </div>
+                        
+                        <div class="flex items-center space-x-2 ml-4">
+                            ${!notification.is_read ? `
+                                <button class="mark-read-btn px-3 py-1 text-xs bg-blue-600 text-white rounded hover:bg-blue-700 transition-colors"
+                                        data-notification-id="${notification.id}">
+                                    Als gelesen markieren
+                                </button>
+                            ` : ''}
+                            
+                            <div class="relative">
+                                <button class="notification-menu-btn p-2 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
+                                        data-notification-id="${notification.id}">
+                                    <i class="fas fa-ellipsis-v"></i>
+                                </button>
+                                <div class="notification-menu hidden absolute right-0 mt-2 w-48 bg-white dark:bg-gray-700 rounded-md shadow-lg z-10">
+                                    <button class="delete-notification-btn block w-full text-left px-4 py-2 text-sm text-red-600 hover:bg-gray-100 dark:hover:bg-gray-600"
+                                            data-notification-id="${notification.id}">
+                                        Löschen
+                                    </button>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        `;
+        
+        // Event listeners für die Buttons
+        const markReadBtn = element.querySelector('.mark-read-btn');
+        if (markReadBtn) {
+            markReadBtn.addEventListener('click', (e) => {
+                e.stopPropagation();
+                this.markAsRead(notification.id);
+            });
+        }
+        
+        const menuBtn = element.querySelector('.notification-menu-btn');
+        const menu = element.querySelector('.notification-menu');
+        
+        menuBtn.addEventListener('click', (e) => {
+            e.stopPropagation();
+            menu.classList.toggle('hidden');
+        });
+        
+        const deleteBtn = element.querySelector('.delete-notification-btn');
+        deleteBtn.addEventListener('click', (e) => {
+            e.stopPropagation();
+            this.deleteNotification(notification.id);
+        });
+        
+        // Click outside to close menu
+        document.addEventListener('click', () => {
+            menu.classList.add('hidden');
+        });
+        
+        return element;
+    }
+    
+    async markAsRead(notificationId) {
+        try {
+            const response = await fetch(`/api/social/notifications/${notificationId}/read`, {
+                method: 'POST'
+            });
+            
+            const result = await response.json();
+            
+            if (result.success) {
+                const element = document.querySelector(`[data-notification-id="${notificationId}"]`);
+                element.classList.remove('border-l-4', 'border-blue-500');
+                
+                const markReadBtn = element.querySelector('.mark-read-btn');
+                if (markReadBtn) {
+                    markReadBtn.remove();
+                }
+                
+                this.showMessage('Als gelesen markiert', 'success');
+            } else {
+                this.showMessage('Fehler beim Markieren', 'error');
+            }
+        } catch (error) {
+            console.error('Error marking as read:', error);
+            this.showMessage('Fehler beim Markieren', 'error');
+        }
+    }
+    
+    async markAllAsRead() {
+        try {
+            const response = await fetch('/api/social/notifications/mark-all-read', {
+                method: 'POST'
+            });
+            
+            const result = await response.json();
+            
+            if (result.success) {
+                // Remove all unread indicators
+                document.querySelectorAll('.notification-item').forEach(item => {
+                    item.classList.remove('border-l-4', 'border-blue-500');
+                    const markReadBtn = item.querySelector('.mark-read-btn');
+                    if (markReadBtn) {
+                        markReadBtn.remove();
+                    }
+                });
+                
+                this.showMessage('Alle Benachrichtigungen als gelesen markiert', 'success');
+            } else {
+                this.showMessage('Fehler beim Markieren aller Benachrichtigungen', 'error');
+            }
+        } catch (error) {
+            console.error('Error marking all as read:', error);
+            this.showMessage('Fehler beim Markieren aller Benachrichtigungen', 'error');
+        }
+    }
+    
+    async deleteNotification(notificationId) {
+        if (!confirm('Diese Benachrichtigung wirklich löschen?')) return;
+        
+        try {
+            const response = await fetch(`/api/social/notifications/${notificationId}`, {
+                method: 'DELETE'
+            });
+            
+            const result = await response.json();
+            
+            if (result.success) {
+                const element = document.querySelector(`[data-notification-id="${notificationId}"]`);
+                element.remove();
+                
+                this.showMessage('Benachrichtigung gelöscht', 'success');
+            } else {
+                this.showMessage('Fehler beim Löschen', 'error');
+            }
+        } catch (error) {
+            console.error('Error deleting notification:', error);
+            this.showMessage('Fehler beim Löschen', 'error');
+        }
+    }
+    
+    updateLoadMoreButton() {
+        const loadMoreBtn = document.getElementById('load-more');
+        
+        if (this.hasMore) {
+            loadMoreBtn.style.display = 'block';
+            loadMoreBtn.textContent = this.isLoading ? 'Lädt...' : 'Mehr laden';
+            loadMoreBtn.disabled = this.isLoading;
+        } else {
+            loadMoreBtn.style.display = 'none';
+        }
+    }
+    
+    formatDate(dateString) {
+        const date = new Date(dateString);
+        const now = new Date();
+        const diffInSeconds = Math.floor((now - date) / 1000);
+        
+        if (diffInSeconds < 60) return 'Gerade eben';
+        if (diffInSeconds < 3600) return `vor ${Math.floor(diffInSeconds / 60)} Min`;
+        if (diffInSeconds < 86400) return `vor ${Math.floor(diffInSeconds / 3600)} Std`;
+        if (diffInSeconds < 2592000) return `vor ${Math.floor(diffInSeconds / 86400)} Tagen`;
+        
+        return date.toLocaleDateString('de-DE');
+    }
+    
+    showMessage(message, type) {
+        const toast = document.createElement('div');
+        toast.className = `fixed top-4 right-4 px-6 py-3 rounded-lg shadow-lg z-50 ${
+            type === 'success' ? 'bg-green-500 text-white' : 
+            type === 'error' ? 'bg-red-500 text-white' : 'bg-blue-500 text-white'
+        }`;
+        toast.textContent = message;
+        
+        document.body.appendChild(toast);
+        
+        setTimeout(() => {
+            toast.remove();
+        }, 3000);
+    }
+}
+
+// Initialize when DOM is loaded
+document.addEventListener('DOMContentLoaded', () => {
+    new NotificationCenter();
+});
+</script>
+{% endblock %} 

templates/social/profile.html

@@ -0,0 +1,668 @@
+{% extends "base.html" %}
+
+{% block title %}{{ user.display_name or user.username }} - SysTades{% endblock %}
+
+{% block additional_css %}
+<style>
+    .profile-container {
+        max-width: 1000px;
+        margin: 0 auto;
+        padding: 20px;
+    }
+    
+    .profile-header {
+        background: white;
+        border-radius: 16px;
+        padding: 30px;
+        margin-bottom: 25px;
+        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+        border: 1px solid #e1e8ed;
+        position: relative;
+        overflow: hidden;
+    }
+    
+    .profile-header::before {
+        content: '';
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        height: 120px;
+        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+        z-index: 1;
+    }
+    
+    .profile-content {
+        position: relative;
+        z-index: 2;
+    }
+    
+    .profile-avatar {
+        width: 120px;
+        height: 120px;
+        border-radius: 50%;
+        background: white;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        font-size: 48px;
+        font-weight: bold;
+        color: #667eea;
+        margin: 60px auto 20px auto;
+        border: 4px solid white;
+        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
+    }
+    
+    .profile-info {
+        text-align: center;
+        color: white;
+        margin-bottom: 30px;
+    }
+    
+    .profile-name {
+        font-size: 28px;
+        font-weight: 700;
+        margin: 0 0 8px 0;
+    }
+    
+    .profile-username {
+        font-size: 18px;
+        opacity: 0.9;
+        margin: 0 0 15px 0;
+    }
+    
+    .profile-bio {
+        font-size: 16px;
+        line-height: 1.5;
+        opacity: 0.95;
+        max-width: 600px;
+        margin: 0 auto;
+    }
+    
+    .profile-stats {
+        display: flex;
+        justify-content: center;
+        gap: 40px;
+        background: rgba(255,255,255,0.1);
+        backdrop-filter: blur(10px);
+        border-radius: 12px;
+        padding: 20px;
+        margin-top: 25px;
+    }
+    
+    .stat-item {
+        text-align: center;
+        color: white;
+    }
+    
+    .stat-number {
+        font-size: 24px;
+        font-weight: 700;
+        display: block;
+    }
+    
+    .stat-label {
+        font-size: 14px;
+        opacity: 0.9;
+        margin-top: 4px;
+    }
+    
+    .profile-actions {
+        display: flex;
+        justify-content: center;
+        gap: 15px;
+        margin-top: 25px;
+    }
+    
+    .action-btn {
+        background: white;
+        color: #667eea;
+        border: none;
+        padding: 12px 24px;
+        border-radius: 25px;
+        font-weight: 600;
+        cursor: pointer;
+        transition: all 0.3s ease;
+        text-decoration: none;
+        display: inline-flex;
+        align-items: center;
+        gap: 8px;
+    }
+    
+    .action-btn:hover {
+        background: #f0f2f5;
+        transform: translateY(-2px);
+        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
+    }
+    
+    .action-btn.primary {
+        background: #1877f2;
+        color: white;
+    }
+    
+    .action-btn.primary:hover {
+        background: #166fe5;
+    }
+    
+    .profile-navigation {
+        background: white;
+        border-radius: 12px;
+        margin-bottom: 25px;
+        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+        border: 1px solid #e1e8ed;
+        overflow: hidden;
+    }
+    
+    .nav-tabs {
+        display: flex;
+        border-bottom: 1px solid #e1e8ed;
+    }
+    
+    .nav-tab {
+        flex: 1;
+        background: none;
+        border: none;
+        padding: 15px 20px;
+        cursor: pointer;
+        font-weight: 500;
+        color: #8a8a8a;
+        transition: all 0.2s;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        gap: 8px;
+    }
+    
+    .nav-tab:hover {
+        background: #f8f9fa;
+        color: #1d2129;
+    }
+    
+    .nav-tab.active {
+        color: #1877f2;
+        border-bottom: 2px solid #1877f2;
+        background: #f0f2f5;
+    }
+    
+    .profile-content-area {
+        background: white;
+        border-radius: 12px;
+        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+        border: 1px solid #e1e8ed;
+        min-height: 400px;
+    }
+    
+    .posts-grid {
+        padding: 20px;
+        display: grid;
+        gap: 20px;
+    }
+    
+    .post-card {
+        background: #f8f9fa;
+        border-radius: 12px;
+        padding: 20px;
+        border: 1px solid #e1e8ed;
+        transition: all 0.3s ease;
+    }
+    
+    .post-card:hover {
+        background: white;
+        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
+        transform: translateY(-2px);
+    }
+    
+    .post-meta {
+        display: flex;
+        align-items: center;
+        gap: 15px;
+        margin-bottom: 15px;
+        color: #8a8a8a;
+        font-size: 14px;
+    }
+    
+    .post-content {
+        color: #1d2129;
+        line-height: 1.6;
+        margin-bottom: 15px;
+    }
+    
+    .post-stats {
+        display: flex;
+        gap: 20px;
+        color: #8a8a8a;
+        font-size: 14px;
+    }
+    
+    .post-stat {
+        display: flex;
+        align-items: center;
+        gap: 6px;
+    }
+    
+    .empty-state {
+        text-align: center;
+        padding: 60px 20px;
+        color: #8a8a8a;
+    }
+    
+    .empty-state h3 {
+        margin-bottom: 12px;
+        color: #1d2129;
+    }
+    
+    .about-grid {
+        padding: 20px;
+        display: grid;
+        gap: 20px;
+    }
+    
+    .about-section {
+        background: #f8f9fa;
+        border-radius: 12px;
+        padding: 20px;
+        border: 1px solid #e1e8ed;
+    }
+    
+    .about-section h3 {
+        margin: 0 0 15px 0;
+        color: #1d2129;
+        font-size: 18px;
+    }
+    
+    .info-row {
+        display: flex;
+        align-items: center;
+        gap: 12px;
+        margin-bottom: 12px;
+        color: #1d2129;
+    }
+    
+    .info-row i {
+        color: #1877f2;
+        width: 20px;
+    }
+    
+    /* Responsive */
+    @media (max-width: 768px) {
+        .profile-stats {
+            gap: 20px;
+        }
+        
+        .profile-actions {
+            flex-direction: column;
+            align-items: center;
+        }
+        
+        .nav-tabs {
+            overflow-x: auto;
+        }
+    }
+    
+    /* Dark Mode */
+    [data-theme="dark"] .profile-header,
+    [data-theme="dark"] .profile-navigation,
+    [data-theme="dark"] .profile-content-area,
+    [data-theme="dark"] .about-section {
+        background: #242526;
+        border-color: #3a3b3c;
+        color: #e4e6ea;
+    }
+    
+    [data-theme="dark"] .post-card {
+        background: #3a3b3c;
+        border-color: #4e4f50;
+    }
+    
+    [data-theme="dark"] .post-card:hover {
+        background: #4e4f50;
+    }
+    
+    [data-theme="dark"] .nav-tab {
+        color: #b0b3b8;
+    }
+    
+    [data-theme="dark"] .nav-tab:hover {
+        background: #3a3b3c;
+        color: #e4e6ea;
+    }
+    
+    [data-theme="dark"] .action-btn {
+        background: #3a3b3c;
+        color: #e4e6ea;
+    }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="profile-container">
+    <!-- Profile Header -->
+    <div class="profile-header">
+        <div class="profile-content">
+            <div class="profile-avatar">
+                {{ user.username[0].upper() }}
+            </div>
+            
+            <div class="profile-info">
+                <h1 class="profile-name">{{ user.display_name or user.username }}</h1>
+                <p class="profile-username">@{{ user.username }}</p>
+                {% if user.bio %}
+                <p class="profile-bio">{{ user.bio }}</p>
+                {% endif %}
+            </div>
+            
+            <div class="profile-stats">
+                <div class="stat-item">
+                    <span class="stat-number">{{ user.post_count }}</span>
+                    <div class="stat-label">Posts</div>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-number">{{ user.follower_count }}</span>
+                    <div class="stat-label">Follower</div>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-number">{{ user.following_count }}</span>
+                    <div class="stat-label">Folgt</div>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-number">{{ user.mindmaps|length if user.mindmaps else 0 }}</span>
+                    <div class="stat-label">Mindmaps</div>
+                </div>
+            </div>
+            
+            {% if user != current_user %}
+            <div class="profile-actions">
+                <button 
+                    class="action-btn primary" 
+                    onclick="followUser({{ user.id }})"
+                    id="followBtn"
+                >
+                    <i class="fas fa-user-plus"></i>
+                    {% if is_following %}Gefolgt{% else %}Folgen{% endif %}
+                </button>
+                <button class="action-btn" onclick="sendMessage({{ user.id }})">
+                    <i class="fas fa-envelope"></i>
+                    Nachricht
+                </button>
+            </div>
+            {% else %}
+            <div class="profile-actions">
+                <a href="{{ url_for('settings') }}" class="action-btn">
+                    <i class="fas fa-cog"></i>
+                    Profil bearbeiten
+                </a>
+                <a href="{{ url_for('create_mindmap') }}" class="action-btn primary">
+                    <i class="fas fa-plus"></i>
+                    Neue Mindmap
+                </a>
+            </div>
+            {% endif %}
+        </div>
+    </div>
+    
+    <!-- Profile Navigation -->
+    <div class="profile-navigation">
+        <div class="nav-tabs">
+            <button class="nav-tab active" onclick="switchTab('posts')">
+                <i class="fas fa-th-large"></i>
+                Posts
+            </button>
+            <button class="nav-tab" onclick="switchTab('mindmaps')">
+                <i class="fas fa-project-diagram"></i>
+                Mindmaps
+            </button>
+            <button class="nav-tab" onclick="switchTab('thoughts')">
+                <i class="fas fa-lightbulb"></i>
+                Gedanken
+            </button>
+            <button class="nav-tab" onclick="switchTab('about')">
+                <i class="fas fa-info-circle"></i>
+                Über
+            </button>
+        </div>
+    </div>
+    
+    <!-- Profile Content Area -->
+    <div class="profile-content-area">
+        <!-- Posts Tab -->
+        <div id="posts-tab" class="tab-content">
+            <div class="posts-grid">
+                {% if posts %}
+                    {% for post in posts %}
+                    <div class="post-card">
+                        <div class="post-meta">
+                            <span><i class="fas fa-clock"></i> {{ post.created_at.strftime('%d.%m.%Y') }}</span>
+                            <span><i class="fas fa-eye"></i> {{ post.view_count }} Aufrufe</span>
+                        </div>
+                        <div class="post-content">
+                            {{ post.content[:300] }}{% if post.content|length > 300 %}...{% endif %}
+                        </div>
+                        <div class="post-stats">
+                            <div class="post-stat">
+                                <i class="fas fa-heart"></i>
+                                <span>{{ post.like_count }}</span>
+                            </div>
+                            <div class="post-stat">
+                                <i class="fas fa-comment"></i>
+                                <span>{{ post.comment_count }}</span>
+                            </div>
+                            <div class="post-stat">
+                                <i class="fas fa-share"></i>
+                                <span>{{ post.share_count or 0 }}</span>
+                            </div>
+                        </div>
+                    </div>
+                    {% endfor %}
+                {% else %}
+                <div class="empty-state">
+                    <h3>Noch keine Posts</h3>
+                    <p>{% if user == current_user %}Du hast noch keine Posts erstellt.{% else %}{{ user.username }} hat noch keine Posts veröffentlicht.{% endif %}</p>
+                    {% if user == current_user %}
+                    <a href="{{ url_for('social_feed') }}" class="action-btn primary" style="margin-top: 15px;">
+                        <i class="fas fa-plus"></i>
+                        Ersten Post erstellen
+                    </a>
+                    {% endif %}
+                </div>
+                {% endif %}
+            </div>
+        </div>
+        
+        <!-- Mindmaps Tab -->
+        <div id="mindmaps-tab" class="tab-content" style="display: none;">
+            <div class="posts-grid">
+                {% if user.mindmaps %}
+                    {% for mindmap in user.mindmaps %}
+                    <div class="post-card">
+                        <div class="post-meta">
+                            <span><i class="fas fa-clock"></i> {{ mindmap.created_at.strftime('%d.%m.%Y') }}</span>
+                            <span><i class="fas fa-nodes"></i> {{ mindmap.public_nodes|length }} Knoten</span>
+                        </div>
+                        <div class="post-content">
+                            <h4 style="margin: 0 0 10px 0; color: #1877f2;">{{ mindmap.name }}</h4>
+                            <p>{{ mindmap.description or 'Keine Beschreibung verfügbar' }}</p>
+                        </div>
+                        <div class="post-stats">
+                            <a href="{{ url_for('user_mindmap', mindmap_id=mindmap.id) }}" class="action-btn">
+                                <i class="fas fa-eye"></i>
+                                Anzeigen
+                            </a>
+                        </div>
+                    </div>
+                    {% endfor %}
+                {% else %}
+                <div class="empty-state">
+                    <h3>Keine Mindmaps</h3>
+                    <p>{% if user == current_user %}Du hast noch keine Mindmaps erstellt.{% else %}{{ user.username }} hat noch keine öffentlichen Mindmaps.{% endif %}</p>
+                    {% if user == current_user %}
+                    <a href="{{ url_for('create_mindmap') }}" class="action-btn primary" style="margin-top: 15px;">
+                        <i class="fas fa-plus"></i>
+                        Erste Mindmap erstellen
+                    </a>
+                    {% endif %}
+                </div>
+                {% endif %}
+            </div>
+        </div>
+        
+        <!-- Thoughts Tab -->
+        <div id="thoughts-tab" class="tab-content" style="display: none;">
+            <div class="posts-grid">
+                {% if user.thoughts %}
+                    {% for thought in user.thoughts[:10] %}
+                    <div class="post-card">
+                        <div class="post-meta">
+                            <span><i class="fas fa-clock"></i> {{ thought.created_at.strftime('%d.%m.%Y') }}</span>
+                            <span><i class="fas fa-tag"></i> {{ thought.branch }}</span>
+                        </div>
+                        <div class="post-content">
+                            <h4 style="margin: 0 0 10px 0; color: #1877f2;">{{ thought.title }}</h4>
+                            <p>{{ thought.abstract or thought.content[:200] }}{% if (thought.abstract or thought.content)|length > 200 %}...{% endif %}</p>
+                        </div>
+                        <div class="post-stats">
+                            <div class="post-stat">
+                                <i class="fas fa-star"></i>
+                                <span>{{ thought.average_rating or 0 }}</span>
+                            </div>
+                            <div class="post-stat">
+                                <i class="fas fa-comment"></i>
+                                <span>{{ thought.comments|length }}</span>
+                            </div>
+                        </div>
+                    </div>
+                    {% endfor %}
+                {% else %}
+                <div class="empty-state">
+                    <h3>Keine Gedanken</h3>
+                    <p>{% if user == current_user %}Du hast noch keine Gedanken geteilt.{% else %}{{ user.username }} hat noch keine Gedanken veröffentlicht.{% endif %}</p>
+                </div>
+                {% endif %}
+            </div>
+        </div>
+        
+        <!-- About Tab -->
+        <div id="about-tab" class="tab-content" style="display: none;">
+            <div class="about-grid">
+                <div class="about-section">
+                    <h3>Grundlegende Informationen</h3>
+                    <div class="info-row">
+                        <i class="fas fa-user"></i>
+                        <span>Mitglied seit {{ user.created_at.strftime('%B %Y') }}</span>
+                    </div>
+                    {% if user.location %}
+                    <div class="info-row">
+                        <i class="fas fa-map-marker-alt"></i>
+                        <span>{{ user.location }}</span>
+                    </div>
+                    {% endif %}
+                    {% if user.website %}
+                    <div class="info-row">
+                        <i class="fas fa-globe"></i>
+                        <a href="{{ user.website }}" target="_blank" rel="noopener">{{ user.website }}</a>
+                    </div>
+                    {% endif %}
+                    {% if user.last_login %}
+                    <div class="info-row">
+                        <i class="fas fa-clock"></i>
+                        <span>Zuletzt aktiv: {{ user.last_login.strftime('%d.%m.%Y') }}</span>
+                    </div>
+                    {% endif %}
+                </div>
+                
+                <div class="about-section">
+                    <h3>Aktivitätsstatistiken</h3>
+                    <div class="info-row">
+                        <i class="fas fa-chart-line"></i>
+                        <span>{{ user.post_count }} Posts erstellt</span>
+                    </div>
+                    <div class="info-row">
+                        <i class="fas fa-lightbulb"></i>
+                        <span>{{ user.thoughts|length if user.thoughts else 0 }} Gedanken geteilt</span>
+                    </div>
+                    <div class="info-row">
+                        <i class="fas fa-project-diagram"></i>
+                        <span>{{ user.mindmaps|length if user.mindmaps else 0 }} Mindmaps erstellt</span>
+                    </div>
+                    <div class="info-row">
+                        <i class="fas fa-comments"></i>
+                        <span>Aktives Community-Mitglied</span>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock %}
+
+{% block additional_js %}
+<script>
+// Tab Navigation
+function switchTab(tabName) {
+    // Alle Tabs verstecken
+    document.querySelectorAll('.tab-content').forEach(tab => {
+        tab.style.display = 'none';
+    });
+    
+    // Alle Tab-Buttons deaktivieren
+    document.querySelectorAll('.nav-tab').forEach(btn => {
+        btn.classList.remove('active');
+    });
+    
+    // Gewählten Tab anzeigen
+    document.getElementById(tabName + '-tab').style.display = 'block';
+    
+    // Gewählten Tab-Button aktivieren
+    event.target.classList.add('active');
+}
+
+// Follow/Unfollow Funktionalität
+async function followUser(userId) {
+    const button = document.getElementById('followBtn');
+    
+    try {
+        const response = await fetch('/api/users/' + userId + '/follow', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            }
+        });
+        
+        const data = await response.json();
+        
+        if (data.success) {
+            if (data.action === 'followed') {
+                button.innerHTML = '<i class="fas fa-user-check"></i> Gefolgt';
+                button.classList.add('following');
+            } else {
+                button.innerHTML = '<i class="fas fa-user-plus"></i> Folgen';
+                button.classList.remove('following');
+            }
+        } else {
+            alert(data.error && data.error.message ? data.error.message : 'Fehler beim Folgen');
+        }
+    } catch (error) {
+        console.error('Fehler beim Folgen:', error);
+        alert('Ein Fehler ist aufgetreten. Bitte versuche es erneut.');
+    }
+}
+
+// Nachricht senden (Platzhalter)
+function sendMessage(userId) {
+    alert('Nachrichten-Feature wird bald verfügbar sein!');
+}
+
+// URL-Parameter für Tab-Navigation
+document.addEventListener('DOMContentLoaded', function() {
+    const urlParams = new URLSearchParams(window.location.search);
+    const tab = urlParams.get('tab');
+    
+    if (tab) {
+        // Tab aus URL aktivieren
+        const tabButton = document.querySelector('[onclick="switchTab(\'' + tab + '\')"]');
+        if (tabButton) {
+            tabButton.click();
+        }
+    }
+});
+</script>
+{% endblock %} 

utils/__init__.py

@@ -29,8 +29,8 @@ __all__ = [
     'delete_user',
     'create_admin_user',
     
-    # Server management
-    'run_development_server',
+    # Server management (imported separately to avoid circular imports)
+    # 'run_development_server' - available in utils.server module
 ]
 
 # Import remaining modules that might depend on app
@@ -38,4 +38,4 @@ from .db_fix import fix_database_schema
 from .db_rebuild import rebuild_database
 from .db_test import test_database_connection, test_models, print_database_stats, run_all_tests
 from .user_manager import list_users, create_user, reset_password, delete_user, create_admin_user
-from .server import run_development_server 
+# Removed server import to prevent circular import - access via utils.server directly 

utils/check_db.py

@@ -0,0 +1,38 @@
+import sqlite3
+
+def check_mindmap_nodes():
+    try:
+        conn = sqlite3.connect('database/systades.db')
+        cursor = conn.cursor()
+
+        # Check if the table exists
+        cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='mind_map_node';")
+        table_exists = cursor.fetchone()
+        
+        if not table_exists:
+            print("Die Tabelle 'mind_map_node' existiert nicht!")
+            return
+        
+        # Check for the "Wissen" node
+        cursor.execute("SELECT * FROM mind_map_node WHERE name = 'Wissen';")
+        wissen_node = cursor.fetchone()
+        
+        if wissen_node:
+            print(f"'Wissen'-Knoten gefunden: {wissen_node}")
+        else:
+            print("'Wissen'-Knoten NICHT gefunden!")
+        
+        # Get all nodes
+        cursor.execute("SELECT id, name FROM mind_map_node LIMIT 10;")
+        nodes = cursor.fetchall()
+        
+        print(f"\nVorhandene Knoten (max. 10):")
+        for node in nodes:
+            print(f"  - {node}")
+        
+        conn.close()
+    except Exception as e:
+        print(f"Fehler: {e}")
+
+if __name__ == "__main__":
+    check_mindmap_nodes()

utils/db_check.py

@@ -1,17 +1,17 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from flask import current_app
 from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy import text
 import time
 
-def check_db_connection(db):
+def check_db_connection(db, app=None):
     """
     Überprüft die Datenbankverbindung und versucht ggf. die Verbindung wiederherzustellen
     
     Args:
         db: SQLAlchemy-Instanz
+        app: Flask-App-Instanz (optional, falls nicht im App-Kontext)
         
     Returns:
         bool: True, wenn die Verbindung erfolgreich ist, sonst False
@@ -22,7 +22,11 @@ def check_db_connection(db):
     while retry_count < max_retries:
         try:
             # Führe eine einfache Abfrage durch, um die Verbindung zu testen
-            with current_app.app_context():
+            if app:
+                with app.app_context():
+                    db.session.execute(text('SELECT 1'))
+            else:
+                # Versuche ohne expliziten App-Kontext (falls bereits im Kontext)
                 db.session.execute(text('SELECT 1'))
             return True
         except SQLAlchemyError as e:
@@ -38,42 +42,60 @@ def check_db_connection(db):
                     db.session.rollback()
                 except:
                     pass
+        except Exception as e:
+            print(f"Allgemeiner Fehler bei DB-Check: {str(e)}")
+            retry_count += 1
+            if retry_count < max_retries:
+                time.sleep(1)
     
     return False
 
-def initialize_db_if_needed(db, initialize_function=None):
+def initialize_db_if_needed(db, initialize_function=None, app=None):
     """
     Initialisiert die Datenbank, falls erforderlich
     
     Args:
         db: SQLAlchemy-Instanz
         initialize_function: Funktion, die aufgerufen wird, um die Datenbank zu initialisieren
+        app: Flask-App-Instanz (optional, falls nicht im App-Kontext)
         
     Returns:
         bool: True, wenn die Datenbank bereit ist, sonst False
     """
     # Prüfe die Verbindung
-    if not check_db_connection(db):
+    if not check_db_connection(db, app):
         return False
     
     # Prüfe, ob die Tabellen existieren
     try:
-        with current_app.app_context():
-            # Führe eine Testabfrage auf einer Tabelle durch
+        if app:
+            with app.app_context():
+                # Führe eine Testabfrage auf einer Tabelle durch
+                db.session.execute(text('SELECT COUNT(*) FROM user'))
+        else:
+            # Versuche ohne expliziten App-Kontext
             db.session.execute(text('SELECT COUNT(*) FROM user'))
     except SQLAlchemyError:
         # Tabellen existieren nicht, erstelle sie
         try:
-            with current_app.app_context():
+            if app:
+                with app.app_context():
+                    db.create_all()
+                    
+                    # Rufe die Initialisierungsfunktion auf, falls vorhanden
+                    if initialize_function and callable(initialize_function):
+                        initialize_function()
+            else:
                 db.create_all()
-                
-                # Rufe die Initialisierungsfunktion auf, falls vorhanden
                 if initialize_function and callable(initialize_function):
                     initialize_function()
                     
-                return True
+            return True
         except Exception as e:
             print(f"Fehler bei DB-Initialisierung: {str(e)}")
             return False
+    except Exception as e:
+        print(f"Fehler beim Prüfen der Datenbank-Tabellen: {str(e)}")
+        return False
     
     return True 

utils/db_fix.py

@@ -11,19 +11,33 @@ import importlib.util
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app, db_path
+# Direkt den Datenbankpfad berechnen, statt ihn aus app.py zu importieren
+def get_db_path():
+    """Berechnet den absoluten Pfad zur Datenbank"""
+    basedir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+    return os.path.join(basedir, 'database', 'systades.db')
+
+# Import models direkt
 from models import db
 
 def ensure_db_dir():
     """Make sure the database directory exists."""
+    db_path = get_db_path()
     os.makedirs(os.path.dirname(db_path), exist_ok=True)
 
 def fix_database_schema():
     """Fix the database schema by adding missing columns."""
+    # Import Flask-App erst innerhalb der Funktion
+    from flask import Flask
+    from app import app
+    
     with app.app_context():
         # Ensure directory exists
         ensure_db_dir()
         
+        # Get database path
+        db_path = get_db_path()
+        
         # Check if database exists, create tables if needed
         if not os.path.exists(db_path):
             print("Database doesn't exist. Creating all tables from scratch...")

utils/db_test.py

@@ -9,9 +9,19 @@ import sqlite3
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app, db_path
+# Vermeidung zirkulärer Importe - importiere nur die Modelle und DB-Objekt
 from models import db, User, Thought, MindMapNode, Category
 
+def get_db_path():
+    """Ermittelt den Pfad zur Datenbankdatei"""
+    db_dir = os.path.join(parent_dir, 'database')
+    if not os.path.exists(db_dir):
+        os.makedirs(db_dir)
+    return os.path.join(db_dir, 'systades.db')
+
+# Datenbank-Pfad
+db_path = get_db_path()
+
 def test_database_connection():
     """Test if the database exists and can be connected to."""
     try:
@@ -37,52 +47,52 @@ def test_database_connection():
 
 def test_models():
     """Test if all models are properly defined and can be queried."""
-    with app.app_context():
-        try:
-            print("\nTesting User model...")
-            user_count = User.query.count()
-            print(f"  Found {user_count} users")
-            
-            print("\nTesting Category model...")
-            category_count = Category.query.count()
-            print(f"  Found {category_count} categories")
-            
-            print("\nTesting MindMapNode model...")
-            node_count = MindMapNode.query.count()
-            print(f"  Found {node_count} mindmap nodes")
-            
-            print("\nTesting Thought model...")
-            thought_count = Thought.query.count()
-            print(f"  Found {thought_count} thoughts")
-            
-            if user_count == 0:
-                print("\nWARNING: No users found in the database. You might need to create an admin user.")
-            
-            return True
-        except Exception as e:
-            print(f"Error testing models: {e}")
-            return False
+    # Import app here to avoid circular import
+    from flask import current_app
+    try:
+        print("\nTesting User model...")
+        user_count = User.query.count()
+        print(f"  Found {user_count} users")
+        
+        print("\nTesting Category model...")
+        category_count = Category.query.count()
+        print(f"  Found {category_count} categories")
+        
+        print("\nTesting MindMapNode model...")
+        node_count = MindMapNode.query.count()
+        print(f"  Found {node_count} mindmap nodes")
+        
+        print("\nTesting Thought model...")
+        thought_count = Thought.query.count()
+        print(f"  Found {thought_count} thoughts")
+        
+        if user_count == 0:
+            print("\nWARNING: No users found in the database. You might need to create an admin user.")
+        
+        return True
+    except Exception as e:
+        print(f"Error testing models: {e}")
+        return False
 
 def print_database_stats():
     """Print database statistics."""
-    with app.app_context():
-        try:
-            stats = []
-            stats.append(("Users", User.query.count()))
-            stats.append(("Categories", Category.query.count()))
-            stats.append(("Mindmap Nodes", MindMapNode.query.count()))
-            stats.append(("Thoughts", Thought.query.count()))
-            
-            print("\nDatabase Statistics:")
-            print("-" * 40)
-            for name, count in stats:
-                print(f"{name:<20} : {count}")
-            print("-" * 40)
-            
-            return True
-        except Exception as e:
-            print(f"Error generating database statistics: {e}")
-            return False
+    try:
+        stats = []
+        stats.append(("Users", User.query.count()))
+        stats.append(("Categories", Category.query.count()))
+        stats.append(("Mindmap Nodes", MindMapNode.query.count()))
+        stats.append(("Thoughts", Thought.query.count()))
+        
+        print("\nDatabase Statistics:")
+        print("-" * 40)
+        for name, count in stats:
+            print(f"{name:<20} : {count}")
+        print("-" * 40)
+        
+        return True
+    except Exception as e:
+        print(f"Error generating database statistics: {e}")
+        return False
 
 def run_all_tests():
     """Run all database tests."""
@@ -97,15 +107,18 @@ def run_all_tests():
     if not test_database_connection():
         success = False
     
-    # Test models
-    print("\n2. Testing database models...")
-    if not test_models():
-        success = False
-    
-    # Print statistics
-    print("\n3. Database statistics:")
-    if not print_database_stats():
-        success = False
+    # Import app here to avoid circular import
+    from app import app
+    with app.app_context():
+        # Test models
+        print("\n2. Testing database models...")
+        if not test_models():
+            success = False
+        
+        # Print statistics
+        print("\n3. Database statistics:")
+        if not print_database_stats():
+            success = False
     
     print("\n" + "=" * 60)
     if success:
@@ -117,4 +130,7 @@ def run_all_tests():
     return success
 
 if __name__ == "__main__":
-    run_all_tests() 
+    # Import app here to avoid circular import
+    from app import app
+    with app.app_context():
+        run_all_tests() 

utils/logger.py

@@ -0,0 +1,792 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import logging
+import os
+import sys
+from datetime import datetime
+from functools import wraps
+from flask import request, g, current_app
+from flask_login import current_user
+import traceback
+import json
+import time
+
+# ANSI Color Codes für farbige Terminal-Ausgabe
+class Colors:
+    # Standard Colors
+    RESET = '\033[0m'
+    BOLD = '\033[1m'
+    DIM = '\033[2m'
+    
+    # Foreground Colors
+    BLACK = '\033[30m'
+    RED = '\033[31m'
+    GREEN = '\033[32m'
+    YELLOW = '\033[33m'
+    BLUE = '\033[34m'
+    MAGENTA = '\033[35m'
+    CYAN = '\033[36m'
+    WHITE = '\033[37m'
+    
+    # Bright Colors
+    BRIGHT_RED = '\033[91m'
+    BRIGHT_GREEN = '\033[92m'
+    BRIGHT_YELLOW = '\033[93m'
+    BRIGHT_BLUE = '\033[94m'
+    BRIGHT_MAGENTA = '\033[95m'
+    BRIGHT_CYAN = '\033[96m'
+    BRIGHT_WHITE = '\033[97m'
+    
+    # Background Colors
+    BG_RED = '\033[41m'
+    BG_GREEN = '\033[42m'
+    BG_YELLOW = '\033[43m'
+    BG_BLUE = '\033[44m'
+    BG_MAGENTA = '\033[45m'
+    BG_CYAN = '\033[46m'
+
+class LoggerConfig:
+    """Konfiguration für das Logging-System"""
+    LOG_DIR = 'logs'
+    MAX_LOG_SIZE = 10 * 1024 * 1024  # 10MB
+    BACKUP_COUNT = 5
+    LOG_FORMAT = '%(asctime)s | %(levelname)s | %(name)s | %(message)s'
+    DATE_FORMAT = '%Y-%m-%d %H:%M:%S'
+
+class ColoredFormatter(logging.Formatter):
+    """Custom Formatter für farbige Log-Ausgaben mit schönen Emojis"""
+    
+    LEVEL_COLORS = {
+        'DEBUG': Colors.BRIGHT_CYAN,
+        'INFO': Colors.BRIGHT_GREEN,
+        'WARNING': Colors.BRIGHT_YELLOW,
+        'ERROR': Colors.BRIGHT_RED,
+        'CRITICAL': Colors.BG_RED + Colors.BRIGHT_WHITE
+    }
+    
+    COMPONENT_COLORS = {
+        'AUTH': Colors.BLUE,
+        'API': Colors.GREEN,
+        'DB': Colors.MAGENTA,
+        'SOCIAL': Colors.CYAN,
+        'SYSTEM': Colors.YELLOW,
+        'ERROR': Colors.RED,
+        'SECURITY': Colors.BRIGHT_MAGENTA,
+        'PERFORMANCE': Colors.BRIGHT_BLUE,
+        'ACTIVITY': Colors.BRIGHT_CYAN
+    }
+    
+    # Erweiterte Emoji-Mappings für verschiedene Komponenten und Aktionen
+    COMPONENT_EMOJIS = {
+        'AUTH': '🔐',
+        'API': '🌐',
+        'DB': '🗄️',
+        'SOCIAL': '👥',
+        'SYSTEM': '⚙️',
+        'ERROR': '💥',
+        'SECURITY': '🛡️',
+        'PERFORMANCE': '⚡',
+        'ACTIVITY': '🎯'
+    }
+    
+    # Spezielle Emojis für verschiedene Log-Level
+    LEVEL_EMOJIS = {
+        'DEBUG': '🔍',
+        'INFO': '✅',
+        'WARNING': '⚠️',
+        'ERROR': '❌',
+        'CRITICAL': '🚨'
+    }
+    
+    # Action-spezifische Emojis
+    ACTION_EMOJIS = {
+        'login': '🚪',
+        'logout': '🚪',
+        'register': '📝',
+        'like': '❤️',
+        'unlike': '💔',
+        'comment': '💬',
+        'share': '🔄',
+        'follow': '➕',
+        'unfollow': '➖',
+        'bookmark': '🔖',
+        'unbookmark': '📑',
+        'post_created': '📝',
+        'post_deleted': '🗑️',
+        'upload': '📤',
+        'download': '📥',
+        'search': '🔍',
+        'notification': '🔔',
+        'message': '💌',
+        'profile_update': '👤',
+        'settings': '⚙️',
+        'admin': '👑',
+        'backup': '💾',
+        'restore': '🔄',
+        'migration': '🚚',
+        'cache': '⚡',
+        'email': '📧',
+        'password_reset': '🔑',
+        'verification': '✅',
+        'ban': '🚫',
+        'unban': '✅',
+        'report': '🚩',
+        'moderate': '🛡️'
+    }
+    
+    def _get_action_emoji(self, message: str) -> str:
+        """Ermittelt das passende Emoji basierend auf der Nachricht"""
+        message_lower = message.lower()
+        for action, emoji in self.ACTION_EMOJIS.items():
+            if action in message_lower:
+                return emoji
+        return '📝'
+    
+    def format(self, record):
+        # Zeitstempel mit schöner Formatierung
+        timestamp = datetime.fromtimestamp(record.created).strftime('%H:%M:%S.%f')[:-3]
+        colored_timestamp = f"{Colors.DIM}⏰ {timestamp}{Colors.RESET}"
+        
+        # Level mit Farbe und Emoji
+        level_color = self.LEVEL_COLORS.get(record.levelname, Colors.WHITE)
+        level_emoji = self.LEVEL_EMOJIS.get(record.levelname, '📝')
+        colored_level = f"{level_color}{level_emoji} {record.levelname:<8}{Colors.RESET}"
+        
+        # Component mit Farbe und Emoji
+        component = getattr(record, 'component', 'SYSTEM')
+        component_color = self.COMPONENT_COLORS.get(component, Colors.WHITE)
+        component_emoji = self.COMPONENT_EMOJIS.get(component, '📝')
+        colored_component = f"{component_color}{component_emoji} [{component:<11}]{Colors.RESET}"
+        
+        # Message mit Action-spezifischem Emoji
+        message = record.getMessage()
+        action_emoji = self._get_action_emoji(message)
+        
+        # User-Info hinzufügen falls verfügbar
+        user_info = ""
+        if hasattr(record, 'user') and record.user:
+            user_info = f" {Colors.BRIGHT_BLUE}👤 {record.user}{Colors.RESET}"
+        
+        # IP-Info hinzufügen falls verfügbar
+        ip_info = ""
+        if hasattr(record, 'ip') and record.ip:
+            ip_info = f" {Colors.DIM}🌍 {record.ip}{Colors.RESET}"
+        
+        # Duration-Info hinzufügen falls verfügbar
+        duration_info = ""
+        if hasattr(record, 'duration') and record.duration:
+            if record.duration > 1000:
+                duration_color = Colors.BRIGHT_RED
+                duration_emoji = "🐌"
+            elif record.duration > 500:
+                duration_color = Colors.BRIGHT_YELLOW
+                duration_emoji = "⏱️"
+            else:
+                duration_color = Colors.BRIGHT_GREEN
+                duration_emoji = "⚡"
+            duration_info = f" {duration_color}{duration_emoji} {record.duration:.2f}ms{Colors.RESET}"
+        
+        # Separator für bessere Lesbarkeit
+        separator = f"{Colors.DIM}│{Colors.RESET}"
+        
+        # Finale formatierte Nachricht mit schöner Struktur
+        formatted_message = (
+            f"{colored_timestamp} {separator} "
+            f"{colored_level} {separator} "
+            f"{colored_component} {separator} "
+            f"{action_emoji} {message}"
+            f"{user_info}{ip_info}{duration_info}"
+        )
+        
+        return formatted_message
+
+class JSONFormatter(logging.Formatter):
+    """JSON-Formatter für strukturierte Logs"""
+    
+    def format(self, record):
+        log_entry = {
+            'timestamp': datetime.now().isoformat(),
+            'level': record.levelname,
+            'module': record.module,
+            'function': record.funcName,
+            'line': record.lineno,
+            'message': record.getMessage(),
+            'logger': record.name
+        }
+        
+        # Benutzerinformationen hinzufügen - nur im Application Context
+        try:
+            from flask import has_app_context, g, current_user
+            if has_app_context():
+                if hasattr(g, 'user_id'):
+                    log_entry['user_id'] = g.user_id
+                elif current_user and hasattr(current_user, 'id') and current_user.is_authenticated:
+                    log_entry['user_id'] = current_user.id
+        except (ImportError, RuntimeError):
+            # Flask ist nicht verfügbar oder kein App-Context
+            pass
+        
+        # Request-Informationen hinzufügen - nur im Request Context
+        try:
+            from flask import has_request_context, request
+            if has_request_context() and request:
+                log_entry['request'] = {
+                    'method': getattr(request, 'method', None),
+                    'path': getattr(request, 'path', None),
+                    'remote_addr': getattr(request, 'remote_addr', None),
+                    'user_agent': str(getattr(request, 'user_agent', ''))
+                }
+        except (ImportError, RuntimeError):
+            # Flask ist nicht verfügbar oder kein Request-Context
+            pass
+        
+        # Performance-Informationen hinzufügen - nur im Application Context
+        try:
+            from flask import has_app_context, g
+            if has_app_context() and hasattr(g, 'start_time'):
+                duration = (datetime.now() - g.start_time).total_seconds() * 1000
+                log_entry['duration_ms'] = round(duration, 2)
+        except (ImportError, RuntimeError):
+            # Flask ist nicht verfügbar oder kein App-Context
+            pass
+        
+        # Exception-Informationen hinzufügen
+        if record.exc_info:
+            log_entry['exception'] = {
+                'type': record.exc_info[0].__name__,
+                'message': str(record.exc_info[1]),
+                'traceback': self.formatException(record.exc_info)
+            }
+        
+        return json.dumps(log_entry)
+
+class SocialNetworkLogger:
+    """Hauptklasse für das Social Network Logging"""
+    
+    def __init__(self, name: str = 'SysTades'):
+        self.name = name
+        self.logger = logging.getLogger(name)
+        self.logger.setLevel(logging.DEBUG)
+        
+        # Log-Verzeichnis erstellen
+        os.makedirs(LoggerConfig.LOG_DIR, exist_ok=True)
+        
+        # Handler nur einmal hinzufügen
+        if not self.logger.handlers:
+            self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Setup für verschiedene Log-Handler"""
+        
+        # Console Handler mit Farben
+        console_handler = logging.StreamHandler()
+        console_handler.setLevel(logging.DEBUG)
+        console_handler.setFormatter(ColoredFormatter())
+        self.logger.addHandler(console_handler)
+        
+        # File Handler für alle Logs
+        from logging.handlers import RotatingFileHandler
+        file_handler = RotatingFileHandler(
+            os.path.join(LoggerConfig.LOG_DIR, 'app.log'),
+            maxBytes=LoggerConfig.MAX_LOG_SIZE,
+            backupCount=LoggerConfig.BACKUP_COUNT,
+            encoding='utf-8'
+        )
+        file_handler.setLevel(logging.DEBUG)
+        file_formatter = logging.Formatter(
+            '%(asctime)s | %(levelname)s | %(name)s | %(component)s | %(message)s',
+            datefmt=LoggerConfig.DATE_FORMAT
+        )
+        file_handler.setFormatter(file_formatter)
+        self.logger.addHandler(file_handler)
+        
+        # Error Handler für nur Fehler
+        error_handler = RotatingFileHandler(
+            os.path.join(LoggerConfig.LOG_DIR, 'errors.log'),
+            maxBytes=LoggerConfig.MAX_LOG_SIZE,
+            backupCount=LoggerConfig.BACKUP_COUNT,
+            encoding='utf-8'
+        )
+        error_handler.setLevel(logging.ERROR)
+        error_handler.setFormatter(file_formatter)
+        self.logger.addHandler(error_handler)
+        
+        # API Handler für API-spezifische Logs
+        api_handler = RotatingFileHandler(
+            os.path.join(LoggerConfig.LOG_DIR, 'api.log'),
+            maxBytes=LoggerConfig.MAX_LOG_SIZE,
+            backupCount=LoggerConfig.BACKUP_COUNT,
+            encoding='utf-8'
+        )
+        api_handler.setLevel(logging.INFO)
+        api_handler.addFilter(lambda record: hasattr(record, 'component') and record.component == 'API')
+        api_handler.setFormatter(file_formatter)
+        self.logger.addHandler(api_handler)
+    
+    def _log_with_context(self, level: str, message: str, component: str = 'SYSTEM', **kwargs):
+        """Log mit erweiterten Kontext-Informationen"""
+        extra = {'component': component}
+        
+        # User-Info hinzufügen
+        if 'user' in kwargs:
+            extra['user'] = kwargs['user']
+        
+        # IP-Info hinzufügen
+        if 'ip' in kwargs:
+            extra['ip'] = kwargs['ip']
+        
+        # Duration-Info hinzufügen
+        if 'duration' in kwargs:
+            extra['duration'] = kwargs['duration']
+        
+        # Weitere Context-Daten
+        extra.update({k: v for k, v in kwargs.items() if k not in ['user', 'ip', 'duration']})
+        
+        getattr(self.logger, level.lower())(message, extra=extra)
+    
+    def debug(self, message: str, component: str = 'SYSTEM', **kwargs):
+        """Debug-Level Logging mit erweiterten Infos"""
+        self._log_with_context('DEBUG', message, component, **kwargs)
+    
+    def info(self, message: str, component: str = 'SYSTEM', **kwargs):
+        """Info-Level Logging mit erweiterten Infos"""
+        self._log_with_context('INFO', message, component, **kwargs)
+    
+    def warning(self, message: str, component: str = 'SYSTEM', **kwargs):
+        """Warning-Level Logging mit erweiterten Infos"""
+        self._log_with_context('WARNING', message, component, **kwargs)
+    
+    def error(self, message: str, component: str = 'ERROR', **kwargs):
+        """Error-Level Logging mit erweiterten Infos"""
+        self._log_with_context('ERROR', message, component, **kwargs)
+    
+    def critical(self, message: str, component: str = 'ERROR', **kwargs):
+        """Critical-Level Logging mit erweiterten Infos"""
+        self._log_with_context('CRITICAL', message, component, **kwargs)
+    
+    # Erweiterte spezielle Logging-Methoden für Social Network
+    
+    def auth_success(self, username: str, ip: str = None, method: str = 'password'):
+        """Erfolgreiche Authentifizierung mit Details"""
+        message = f"Benutzer '{username}' erfolgreich angemeldet"
+        if method != 'password':
+            message += f" (Methode: {method})"
+        self.info(message, 'AUTH', user=username, ip=ip)
+    
+    def auth_failure(self, username: str, ip: str = None, reason: str = None, method: str = 'password'):
+        """Fehlgeschlagene Authentifizierung mit Details"""
+        message = f"Anmeldung fehlgeschlagen für '{username}'"
+        if reason:
+            message += f" - Grund: {reason}"
+        if method != 'password':
+            message += f" (Methode: {method})"
+        self.warning(message, 'AUTH', user=username, ip=ip)
+    
+    def user_action(self, username: str, action: str, details: str = None, target: str = None):
+        """Erweiterte Benutzer-Aktion mit mehr Details"""
+        message = f"{username}: {action}"
+        if target:
+            message += f" → {target}"
+        if details:
+            message += f" ({details})"
+        self.info(message, 'ACTIVITY', user=username)
+    
+    def api_request(self, method: str, endpoint: str, user: str = None, status: int = None, duration: float = None, size: int = None):
+        """Erweiterte API Request Logging"""
+        message = f"{method} {endpoint}"
+        
+        # Status-spezifische Emojis und Farben
+        if status:
+            if status >= 500:
+                message = f"Server Error: {message}"
+                component = 'ERROR'
+            elif status >= 400:
+                message = f"Client Error: {message}"
+                component = 'API'
+            elif status >= 300:
+                message = f"Redirect: {message}"
+                component = 'API'
+            else:
+                message = f"Success: {message}"
+                component = 'API'
+        else:
+            component = 'API'
+        
+        # Zusätzliche Infos
+        extras = {}
+        if user:
+            extras['user'] = user
+        if duration:
+            extras['duration'] = duration * 1000  # Convert to ms
+        if size:
+            message += f" ({self._format_bytes(size)})"
+        
+        if status and status >= 400:
+            self.warning(message, component, **extras)
+        else:
+            self.info(message, component, **extras)
+    
+    def database_operation(self, operation: str, table: str, success: bool = True, details: str = None, affected_rows: int = None):
+        """Erweiterte Datenbank-Operation Logging"""
+        message = f"DB {operation.upper()} auf '{table}'"
+        
+        if affected_rows is not None:
+            message += f" ({affected_rows} Zeilen)"
+        
+        if details:
+            message += f" - {details}"
+        
+        if success:
+            self.info(message, 'DB')
+        else:
+            self.error(message, 'DB')
+    
+    def security_event(self, event: str, user: str = None, ip: str = None, severity: str = 'warning', details: str = None):
+        """Erweiterte Sicherheitsereignis Logging"""
+        message = f"Security Event: {event}"
+        if details:
+            message += f" - {details}"
+        
+        extras = {}
+        if user:
+            extras['user'] = user
+        if ip:
+            extras['ip'] = ip
+        
+        if severity == 'critical':
+            self.critical(message, 'SECURITY', **extras)
+        elif severity == 'error':
+            self.error(message, 'SECURITY', **extras)
+        else:
+            self.warning(message, 'SECURITY', **extras)
+    
+    def performance_metric(self, metric_name: str, value: float, unit: str = 'ms', threshold: dict = None):
+        """Erweiterte Performance-Metrik Logging"""
+        message = f"Performance: {metric_name} = {value}{unit}"
+        
+        # Threshold-basierte Bewertung
+        if threshold and unit == 'ms':
+            if value > threshold.get('critical', 2000):
+                self.critical(message, 'PERFORMANCE', duration=value)
+            elif value > threshold.get('warning', 1000):
+                self.warning(message, 'PERFORMANCE', duration=value)
+            else:
+                self.info(message, 'PERFORMANCE', duration=value)
+        else:
+            self.info(message, 'PERFORMANCE')
+    
+    def social_interaction(self, user: str, action: str, target: str, target_type: str = 'post', target_user: str = None):
+        """Erweiterte Social Media Interaktion Logging"""
+        message = f"{user} {action} {target_type}"
+        if target_user and target_user != user:
+            message += f" von {target_user}"
+        message += f" (ID: {target})"
+        
+        self.info(message, 'SOCIAL', user=user)
+    
+    def system_startup(self, version: str = None, environment: str = None, port: int = None):
+        """Erweiterte System-Start Logging"""
+        message = "🚀 SysTades Social Network gestartet"
+        if version:
+            message += f" (v{version})"
+        if environment:
+            message += f" in {environment} Umgebung"
+        if port:
+            message += f" auf Port {port}"
+        self.info(message, 'SYSTEM')
+    
+    def system_shutdown(self, reason: str = None, uptime: float = None):
+        """Erweiterte System-Shutdown Logging"""
+        message = "🛑 SysTades Social Network beendet"
+        if uptime:
+            message += f" (Laufzeit: {self._format_duration(uptime)})"
+        if reason:
+            message += f" - Grund: {reason}"
+        self.info(message, 'SYSTEM')
+    
+    def file_operation(self, operation: str, filename: str, success: bool = True, size: int = None, user: str = None):
+        """Datei-Operation Logging"""
+        message = f"File {operation.upper()}: {filename}"
+        if size:
+            message += f" ({self._format_bytes(size)})"
+        
+        extras = {}
+        if user:
+            extras['user'] = user
+        
+        if success:
+            self.info(message, 'SYSTEM', **extras)
+        else:
+            self.error(message, 'SYSTEM', **extras)
+    
+    def cache_operation(self, operation: str, key: str, hit: bool = None, size: int = None):
+        """Cache-Operation Logging"""
+        message = f"Cache {operation.upper()}: {key}"
+        if hit is not None:
+            message += f" ({'HIT' if hit else 'MISS'})"
+        if size:
+            message += f" ({self._format_bytes(size)})"
+        
+        self.debug(message, 'SYSTEM')
+    
+    def email_sent(self, recipient: str, subject: str, success: bool = True, error: str = None):
+        """E-Mail Versand Logging"""
+        message = f"E-Mail an {recipient}: '{subject}'"
+        if not success and error:
+            message += f" - Fehler: {error}"
+        
+        if success:
+            self.info(message, 'SYSTEM')
+        else:
+            self.error(message, 'SYSTEM')
+    
+    def _format_bytes(self, bytes_count: int) -> str:
+        """Formatiert Byte-Anzahl in lesbare Form"""
+        for unit in ['B', 'KB', 'MB', 'GB']:
+            if bytes_count < 1024.0:
+                return f"{bytes_count:.1f}{unit}"
+            bytes_count /= 1024.0
+        return f"{bytes_count:.1f}TB"
+    
+    def _format_duration(self, seconds: float) -> str:
+        """Formatiert Dauer in lesbare Form"""
+        if seconds < 60:
+            return f"{seconds:.1f}s"
+        elif seconds < 3600:
+            return f"{seconds/60:.1f}min"
+        else:
+            return f"{seconds/3600:.1f}h"
+    
+    def exception(self, exc: Exception, context: str = None, user: str = None):
+        """Erweiterte Exception Logging mit mehr Details"""
+        message = f"Exception: {type(exc).__name__}: {str(exc)}"
+        if context:
+            message = f"{context} - {message}"
+        
+        # Stack-Trace hinzufügen
+        stack_trace = traceback.format_exc()
+        message += f"\n{stack_trace}"
+        
+        extras = {}
+        if user:
+            extras['user'] = user
+        
+        self.error(message, 'ERROR', **extras)
+
+def log_execution_time(component: str = 'SYSTEM'):
+    """Decorator für Ausführungszeit-Logging"""
+    def decorator(func):
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            logger = SocialNetworkLogger()
+            start_time = time.time()
+            
+            try:
+                result = func(*args, **kwargs)
+                execution_time = (time.time() - start_time) * 1000
+                logger.performance_metric(f"{func.__name__} Ausführungszeit", execution_time, 'ms')
+                return result
+            except Exception as e:
+                execution_time = (time.time() - start_time) * 1000
+                logger.exception(e, f"Fehler in {func.__name__} nach {execution_time:.2f}ms")
+                raise
+        
+        return wrapper
+    return decorator
+
+def log_api_call(func):
+    """Decorator für API-Call Logging"""
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        from flask import request, current_user
+        
+        logger = SocialNetworkLogger()
+        start_time = time.time()
+        
+        # Request-Informationen sammeln
+        method = request.method
+        endpoint = request.endpoint or request.path
+        user = current_user.username if hasattr(current_user, 'username') and current_user.is_authenticated else 'Anonymous'
+        
+        try:
+            result = func(*args, **kwargs)
+            duration = time.time() - start_time
+            
+            # Status-Code ermitteln
+            status = getattr(result, 'status_code', 200) if hasattr(result, 'status_code') else 200
+            
+            logger.api_request(method, endpoint, user, status, duration)
+            return result
+            
+        except Exception as e:
+            duration = time.time() - start_time
+            logger.api_request(method, endpoint, user, 500, duration)
+            logger.exception(e, f"API-Fehler in {endpoint}")
+            raise
+    
+    return wrapper
+
+def performance_monitor(operation_name: str = None):
+    """Erweiterte Decorator für Performance-Monitoring mit schönen Logs"""
+    def decorator(func):
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            logger = SocialNetworkLogger()
+            start_time = time.time()
+            
+            op_name = operation_name or func.__name__
+            
+            # User-Info ermitteln falls verfügbar
+            user = None
+            try:
+                from flask import current_user
+                if hasattr(current_user, 'username') and current_user.is_authenticated:
+                    user = current_user.username
+            except:
+                pass
+            
+            try:
+                result = func(*args, **kwargs)
+                duration = (time.time() - start_time) * 1000
+                
+                # Performance-Kategorisierung mit Emojis
+                if duration > 2000:
+                    logger.critical(f"Kritisch langsame Operation: {op_name}", 'PERFORMANCE', 
+                                  user=user, duration=duration)
+                elif duration > 1000:
+                    logger.warning(f"Langsame Operation: {op_name}", 'PERFORMANCE', 
+                                 user=user, duration=duration)
+                elif duration > 500:
+                    logger.info(f"Mäßige Operation: {op_name}", 'PERFORMANCE', 
+                              user=user, duration=duration)
+                else:
+                    logger.debug(f"Schnelle Operation: {op_name}", 'PERFORMANCE', 
+                               user=user, duration=duration)
+                
+                return result
+                
+            except Exception as e:
+                duration = (time.time() - start_time) * 1000
+                logger.error(f"Fehler in Operation: {op_name} nach {duration:.2f}ms", 'PERFORMANCE', 
+                           user=user, duration=duration)
+                logger.exception(e, f"Performance Monitor - {op_name}", user=user)
+                raise
+        
+        return wrapper
+    return decorator
+
+def log_user_activity(activity_name: str):
+    """Erweiterte Decorator für User-Activity Logging mit Details"""
+    def decorator(func):
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            from flask import current_user, request
+            
+            logger = SocialNetworkLogger()
+            start_time = time.time()
+            
+            # User und Request-Info sammeln
+            username = 'Anonymous'
+            ip = None
+            user_agent = None
+            
+            try:
+                if hasattr(current_user, 'username') and current_user.is_authenticated:
+                    username = current_user.username
+                if request:
+                    ip = request.remote_addr
+                    user_agent = str(request.user_agent)[:100]  # Begrenzen
+            except:
+                pass
+            
+            try:
+                result = func(*args, **kwargs)
+                duration = (time.time() - start_time) * 1000
+                
+                # Erfolgreiche Aktivität loggen
+                details = f"Erfolgreich in {duration:.2f}ms"
+                if user_agent:
+                    details += f" (Browser: {user_agent.split('/')[0] if '/' in user_agent else user_agent})"
+                
+                logger.user_action(username, activity_name, details=details)
+                
+                return result
+                
+            except Exception as e:
+                duration = (time.time() - start_time) * 1000
+                logger.error(f"Fehler in User-Activity '{activity_name}' für {username} nach {duration:.2f}ms: {str(e)}", 
+                           'ACTIVITY', user=username, ip=ip, duration=duration)
+                logger.exception(e, f"User Activity - {activity_name}", user=username)
+                raise
+        
+        return wrapper
+    return decorator
+
+# Globale Logger-Instanz
+social_logger = SocialNetworkLogger()
+
+def get_logger(name: str = None) -> SocialNetworkLogger:
+    """Factory-Funktion für Logger-Instanzen"""
+    if name:
+        return SocialNetworkLogger(name)
+    return social_logger
+
+# Convenience-Funktionen für häufige Log-Operationen
+def log_user_login(username: str, ip: str = None, success: bool = True):
+    """Shortcut für Login-Logging"""
+    if success:
+        social_logger.auth_success(username, ip)
+    else:
+        social_logger.auth_failure(username, ip)
+
+def log_user_action(username: str, action: str, details: str = None):
+    """Shortcut für Benutzer-Aktionen"""
+    social_logger.user_action(username, action, details)
+
+def log_social_action(user: str, action: str, target: str, target_type: str = 'post'):
+    """Shortcut für Social Media Aktionen"""
+    social_logger.social_interaction(user, action, target, target_type)
+
+def log_error(message: str, exception: Exception = None):
+    """Shortcut für Error-Logging"""
+    if exception:
+        social_logger.exception(exception, message)
+    else:
+        social_logger.error(message)
+
+def log_performance(metric_name: str, value: float, unit: str = 'ms'):
+    """Shortcut für Performance-Logging"""
+    social_logger.performance_metric(metric_name, value, unit)
+
+# Setup-Funktion für initiale Konfiguration
+def setup_logging(app=None, log_level: str = 'INFO'):
+    """Setup-Funktion für die Flask-App"""
+    if app:
+        # Flask App Logging konfigurieren
+        app.logger.handlers.clear()
+        app.logger.addHandler(social_logger.logger.handlers[0])  # Console Handler
+        app.logger.setLevel(getattr(logging, log_level.upper()))
+    
+    # System-Start loggen
+    social_logger.system_startup()
+    
+    return social_logger
+
+if __name__ == "__main__":
+    # Test des Logging-Systems
+    logger = SocialNetworkLogger()
+    
+    logger.info("🧪 Teste das Logging-System")
+    logger.auth_success("testuser", "192.168.1.1")
+    logger.user_action("testuser", "Post erstellt", "Neuer Gedanke geteilt")
+    logger.social_interaction("user1", "like", "post_123")
+    logger.api_request("GET", "/api/social/posts", "testuser", 200, 0.045)
+    logger.database_operation("INSERT", "social_posts", True, "Neuer Post gespeichert")
+    logger.performance_metric("Seitenladezeit", 1234.5)
+    logger.warning("⚠️ Test-Warnung")
+    logger.error("❌ Test-Fehler")
+    logger.debug("🔍 Debug-Information")
+    
+    print(f"\n{Colors.BRIGHT_GREEN}✅ Logging-System erfolgreich getestet!{Colors.RESET}")
+    print(f"{Colors.CYAN}📁 Logs gespeichert in: {LoggerConfig.LOG_DIR}/{Colors.RESET}") 

utils/user_manager.py

@@ -9,11 +9,22 @@ from datetime import datetime
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app
+# Import models direkt, app wird lazy geladen
 from models import db, User
 
+def get_app():
+    """Lazy loading der Flask app um zirkuläre Imports zu vermeiden"""
+    try:
+        from flask import current_app
+        return current_app
+    except RuntimeError:
+        # Fallback wenn kein app context existiert
+        from app import app
+        return app
+
 def list_users():
     """List all users in the database."""
+    app = get_app()
     with app.app_context():
         try:
             users = User.query.all()
@@ -37,6 +48,7 @@ def list_users():
 
 def create_user(username, email, password, is_admin=False):
     """Create a new user in the database."""
+    app = get_app()
     with app.app_context():
         try:
             # Check if user already exists
@@ -73,6 +85,7 @@ def create_user(username, email, password, is_admin=False):
 
 def reset_password(username, new_password):
     """Reset password for a user."""
+    app = get_app()
     with app.app_context():
         try:
             user = User.query.filter_by(username=username).first()
@@ -93,6 +106,7 @@ def reset_password(username, new_password):
 
 def delete_user(username):
     """Delete a user from the database."""
+    app = get_app()
     with app.app_context():
         try:
             user = User.query.filter_by(username=username).first()