🔄 chore: aktualisiere die Bytecode-Dateien im __pycache__-Verzeichnis und die systades.db-Datenbankdatei

.env

@@ -1,2 +1,15 @@
-SECRET_KEY=eed9298856dc9363cd32778265780d6904ba24e6a6b815a2cc382bcdd767ea7b
-OPENAI_API_KEY=sk-dein-openai-api-schluessel-hier
+# MindMap Umgebungsvariablen
+# Kopiere diese Datei zu .env und passe die Werte an
+
+# Flask
+FLASK_APP=app.py
+FLASK_DEBUG=1
+SECRET_KEY=your-secret-key-replace-in-production
+
+# 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 

Dockerfile

@@ -0,0 +1,33 @@
+# Dockerfile
+FROM python:3.11-slim
+
+# Arbeitsverzeichnis in Container
+WORKDIR /app
+
+# Systemabhängigkeiten installieren und Verzeichnisse anlegen
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends gcc && \
+    rm -rf /var/lib/apt/lists/* && \
+    mkdir -p /app/database
+
+# pip auf den neuesten Stand bringen und Requirements installieren
+COPY requirements.txt ./
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir -U -r requirements.txt
+
+# Anwendungscode kopieren
+COPY . .
+
+# Berechtigungen für database-Ordner
+RUN chmod -R 777 /app/database
+
+# Exponiere Port 5000 für Flask
+EXPOSE 5000
+
+# Setze Umgebungsvariablen
+ENV FLASK_APP=app.py
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# Startkommando mit spezifischen Flags für Produktion
+CMD ["python", "app.py"] 

app.py

@@ -19,12 +19,13 @@ from openai import OpenAI
 from dotenv import load_dotenv
 from flask_socketio import SocketIO, emit
 from flask_migrate import Migrate
+import sqlalchemy
 
 # Modelle importieren
 from models import (
     db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, 
     RelationType, Category, UserMindmap, UserMindmapNode, MindmapNote, 
-    node_thought_association, user_thought_bookmark, node_relationship
+    node_thought_association, user_thought_bookmark, node_relationship, ForumCategory, ForumPost
 )
 
 # Lade .env-Datei
@@ -190,6 +191,31 @@ def create_default_categories():
     db.session.commit()
     print("Standard-Kategorien wurden erstellt!")
 
+def create_forum_categories():
+    """Erstellt Forum-Kategorien basierend auf Hauptknotenpunkten der Mindmap"""
+    # Hauptknotenpunkte abrufen (nur die, die keine Elternknoten haben)
+    main_nodes = MindMapNode.query.filter(~MindMapNode.id.in_(
+        db.session.query(node_relationship.c.child_id)
+    )).all()
+    
+    for node in main_nodes:
+        # Prüfen, ob eine Forum-Kategorie für diesen Knoten bereits existiert
+        existing_category = ForumCategory.query.filter_by(node_id=node.id).first()
+        if existing_category:
+            continue
+        
+        # Neue Kategorie erstellen
+        forum_category = ForumCategory(
+            node_id=node.id,
+            title=node.name,
+            description=node.description,
+            is_active=True
+        )
+        db.session.add(forum_category)
+    
+    db.session.commit()
+    print("Forum-Kategorien wurden für alle Hauptknotenpunkte erstellt!")
+
 def initialize_database():
     """Initialisiert die Datenbank mit Grunddaten, falls diese leer ist"""
     try:
@@ -198,97 +224,34 @@ def initialize_database():
         # Erstelle alle Tabellen
         db.create_all()
         
-        # Prüfe, ob bereits Benutzer existieren
-        if User.query.count() == 0:
-            print("Erstelle Admin-Benutzer...")
-            admin = User(
-                username="admin",
-                email="admin@example.com",
-                is_admin=True
-            )
-            admin.set_password("admin123")  # In echter Umgebung ein sicheres Passwort verwenden!
-            db.session.add(admin)
+        # Prüfen, ob bereits Kategorien existieren
+        categories_count = Category.query.count()
+        users_count = User.query.count()
         
-        # Prüfe, ob bereits Kategorien existieren
-        if Category.query.count() == 0:
-            print("Erstelle Standard-Kategorien...")
+        # Erstelle Standarddaten, wenn es keine Kategorien gibt
+        if categories_count == 0:
             create_default_categories()
         
-        # Stelle sicher, dass die Standard-Knoten für die öffentliche Mindmap existieren
-        if MindMapNode.query.count() == 0:
-            print("Erstelle Standard-Knoten für die Mindmap...")
-            
-            # Hauptknoten: Wissen
-            root_node = MindMapNode(
-                name="Wissen",
-                description="Zentrale Wissensbasis",
-                color_code="#4299E1",
-                is_public=True
+        # Admin-Benutzer erstellen, wenn keine Benutzer vorhanden sind
+        if users_count == 0:
+            admin_user = User(
+                username="admin",
+                email="admin@example.com",
+                role="admin",
+                is_active=True
             )
-            db.session.add(root_node)
-            db.session.flush()  # Um die ID zu generieren
-            
-            # Verwandte Kategorien finden
-            philosophy = Category.query.filter_by(name="Philosophie").first()
-            science = Category.query.filter_by(name="Wissenschaft").first()
-            technology = Category.query.filter_by(name="Technologie").first()
-            arts = Category.query.filter_by(name="Künste").first()
-            
-            # Erstelle Hauptthemenknoten
-            nodes = [
-                MindMapNode(
-                    name="Philosophie", 
-                    description="Philosophisches Denken",
-                    color_code="#9F7AEA",
-                    category=philosophy,
-                    is_public=True
-                ),
-                MindMapNode(
-                    name="Wissenschaft", 
-                    description="Wissenschaftliche Erkenntnisse",
-                    color_code="#48BB78",
-                    category=science,
-                    is_public=True
-                ),
-                MindMapNode(
-                    name="Technologie", 
-                    description="Technologische Entwicklungen",
-                    color_code="#ED8936",
-                    category=technology,
-                    is_public=True
-                ),
-                MindMapNode(
-                    name="Künste", 
-                    description="Künstlerische Ausdrucksformen",
-                    color_code="#ED64A6",
-                    category=arts,
-                    is_public=True
-                )
-            ]
-            
-            # Füge Knoten zur Datenbank hinzu
-            for node in nodes:
-                db.session.add(node)
-            
+            admin_user.set_password("admin123")  # Sicheres Passwort in der Produktion verwenden!
+            db.session.add(admin_user)
             db.session.commit()
+            print("Admin-Benutzer wurde erstellt!")
         
-            # Nachdem wir die IDs haben, füge die Verbindungen hinzu
-            all_nodes = MindMapNode.query.all()
-            root = MindMapNode.query.filter_by(name="Wissen").first()
+        # Forum-Kategorien erstellen
+        create_forum_categories()
         
-            if root:
-                for node in all_nodes:
-                    if node.id != root.id:
-                        root.children.append(node)
-            
-            # Speichere die Änderungen
-            db.session.commit()
-            
-        print("Datenbankinitialisierung abgeschlossen.")
+        return True
     except Exception as e:
-        print(f"Fehler bei der Datenbankinitialisierung: {str(e)}")
-        db.session.rollback()
-        raise
+        print(f"Fehler bei Datenbank-Initialisierung: {e}")
+        return False
 
 # Instead of before_first_request, which is deprecated in newer Flask versions
 # Use a function to initialize the database that will be called during app creation
@@ -325,6 +288,7 @@ def login():
         password = request.form.get('password')
         
         user = User.query.filter_by(username=username).first()
+        
         if user and user.check_password(password):
             login_user(user)
             # Aktualisiere letzten Login-Zeitpunkt
@@ -333,6 +297,7 @@ def login():
             
             next_page = request.args.get('next')
             return redirect(next_page or url_for('index'))
+        
         flash('Ungültiger Benutzername oder Passwort')
     return render_template('login.html')
 
@@ -354,15 +319,21 @@ def register():
         user = User(username=username, email=email)
         user.set_password(password)
         db.session.add(user)
+        db.session.commit()  # Commit, um eine ID für den Benutzer zu erhalten
         
         # Erstelle eine Standard-Mindmap für den neuen Benutzer
+        try:
             default_mindmap = UserMindmap(
                 name='Meine Mindmap',
                 description='Meine persönliche Wissenslandschaft',
-            user=user
+                user_id=user.id
             )
             db.session.add(default_mindmap)
             db.session.commit()
+        except Exception as e:
+            print(f"Fehler beim Erstellen der Standard-Mindmap: {e}")
+            # Stelle sicher, dass wir trotzdem weitermachen können
+            db.session.rollback()
         
         login_user(user)
         flash('Dein Konto wurde erfolgreich erstellt!', 'success')
@@ -383,31 +354,66 @@ def index():
 # Route for the mindmap page
 @app.route('/mindmap')
 def mindmap():
-    """Zeigt die öffentliche Mindmap an."""
-    try:
-        # Sicherstellen, dass wir Kategorien haben
+    """Zeigt die Mindmap-Seite an."""
+    
+    # Benutzer-Mindmaps, falls angemeldet
+    user_mindmaps = []
+    if current_user.is_authenticated:
+        user_mindmaps = UserMindmap.query.filter_by(user_id=current_user.id).all()
+    
+    # Stelle sicher, dass der "Wissen"-Knoten existiert
+    wissen_node = MindMapNode.query.filter_by(name="Wissen").first()
+    if not wissen_node:
+        wissen_node = MindMapNode(
+            name="Wissen",
+            description="Zentrale Wissensbasis",
+            color_code="#4299E1",
+            is_public=True
+        )
+        db.session.add(wissen_node)
+        db.session.commit()
+        print("'Wissen'-Knoten wurde erstellt")
+    
+    # Überprüfe, ob es Kategorien gibt, sonst erstelle sie
     if Category.query.count() == 0:
         create_default_categories()
+        print("Kategorien wurden erstellt")
     
-        # Hole alle Kategorien der obersten Ebene
-        categories = Category.query.filter_by(parent_id=None).all()
+    # Stelle sicher, dass die Route für statische Dateien korrekt ist
+    mindmap_js_path = url_for('static', filename='js/mindmap-init.js')
     
-        # Transformiere Kategorien in ein anzeigbares Format für die Vorlage
-        category_tree = [build_category_tree(cat) for cat in categories]
-        
-        return render_template('mindmap.html', categories=category_tree)
-    except Exception as e:
-        # Bei Fehler leere Kategorienliste übergeben und Fehler protokollieren
-        print(f"Fehler beim Laden der Mindmap-Kategorien: {str(e)}")
-        return render_template('mindmap.html', categories=[], error=str(e))
+    return render_template('mindmap.html', user_mindmaps=user_mindmaps, mindmap_js_path=mindmap_js_path)
 
 # Route for user profile
 @app.route('/profile')
 @login_required
 def profile():
+    try:
+        # Versuche auf die neue Benutzermodellstruktur zuzugreifen
+        _ = current_user.bio  # Dies wird fehlschlagen, wenn die Spalte nicht existiert
+        
+        # Wenn keine Ausnahme, fahre mit normalem Profil fort
         # Lade Benutzer-Mindmaps
         user_mindmaps = UserMindmap.query.filter_by(user_id=current_user.id).all()
         
+        # Prüfe, ob der Benutzer eine Standard-Mindmap hat, sonst erstelle eine
+        if not user_mindmaps:
+            try:
+                default_mindmap = UserMindmap(
+                    name='Meine Mindmap',
+                    description='Meine persönliche Wissenslandschaft',
+                    user_id=current_user.id
+                )
+                db.session.add(default_mindmap)
+                db.session.commit()
+                
+                # Aktualisiere die Liste nach dem Erstellen
+                user_mindmaps = [default_mindmap]
+            except Exception as e:
+                print(f"Fehler beim Erstellen der Standard-Mindmap in Profil: {e}")
+                # Flash-Nachricht für den Benutzer
+                flash('Es gab ein Problem beim Laden deiner Mindmaps. Bitte versuche es später erneut.', 'warning')
+        
         # Lade Statistiken
         thought_count = Thought.query.filter_by(user_id=current_user.id).count()
         bookmark_count = db.session.query(user_thought_bookmark).filter(
@@ -431,9 +437,18 @@ def profile():
             Thought, Thought.id == ThoughtRating.thought_id
         ).filter(Thought.user_id == current_user.id).scalar() or 0
         
-    # Hole die Anzahl der Follower (falls implementiert)
-    # In diesem Beispiel nehmen wir an, dass es keine Follower-Funktionalität gibt
-    followers_count = 0
+        # Sammle alle Statistiken in einem Wörterbuch
+        stats = {
+            'thought_count': thought_count,
+            'bookmark_count': bookmark_count,
+            'connections_count': connections_count,
+            'contributions_count': contributions_count,
+            'followers_count': 0,  # Platzhalter für zukünftige Funktionalität
+            'rating': round(avg_rating, 1)
+        }
+        
+        # Hole die letzten Gedanken des Benutzers
+        thoughts = Thought.query.filter_by(user_id=current_user.id).order_by(Thought.created_at.desc()).limit(5).all()
         
         # Hole den Standort des Benutzers aus der Datenbank, falls vorhanden
         location = "Deutschland"  # Standardwert
@@ -441,14 +456,29 @@ def profile():
         return render_template('profile.html', 
                               user=current_user,
                               user_mindmaps=user_mindmaps, 
-                          thought_count=thought_count,
-                          bookmark_count=bookmark_count,
-                          connections_count=connections_count,
-                          contributions_count=contributions_count,
-                          followers_count=followers_count,
-                          rating=round(avg_rating, 1),
+                              stats=stats,
+                              thoughts=thoughts,
                               location=location)
                               
+    except (AttributeError, sqlalchemy.exc.OperationalError) as e:
+        # Die Spalte existiert nicht, verwende stattdessen das einfache Profil
+        print(f"Verwende einfaches Profil wegen Datenbankfehler: {e}")
+        flash('Dein Profil wird im einfachen Modus angezeigt, bis die Datenbank aktualisiert wird.', 'warning')
+        
+        # Lade nur die grundlegenden Informationen
+        user_mindmaps = UserMindmap.query.filter_by(user_id=current_user.id).all()
+        thoughts = Thought.query.filter_by(user_id=current_user.id).order_by(Thought.created_at.desc()).limit(5).all()
+        
+        return render_template('simple_profile.html', 
+                              user=current_user,
+                              user_mindmaps=user_mindmaps,
+                              thoughts=thoughts)
+    except Exception as e:
+        # Eine andere Ausnahme ist aufgetreten
+        print(f"Fehler beim Laden des Profils: {e}")
+        flash('Dein Benutzerprofil konnte nicht geladen werden. Bitte kontaktiere den Support.', 'error')
+        return redirect(url_for('index'))
+
 # Route für Benutzereinstellungen
 @app.route('/settings', methods=['GET', 'POST'])
 @login_required
@@ -1479,14 +1509,42 @@ def refresh_mindmap():
         if Category.query.count() == 0:
             create_default_categories()
         
+        # Überprüfe, ob wir bereits einen "Wissen"-Knoten haben
+        wissen_node = MindMapNode.query.filter_by(name="Wissen").first()
+        
+        # Wenn kein "Wissen"-Knoten existiert, erstelle ihn
+        if not wissen_node:
+            wissen_node = MindMapNode(
+                name="Wissen",
+                description="Zentrale Wissensbasis",
+                color_code="#4299E1",
+                is_public=True
+            )
+            db.session.add(wissen_node)
+            db.session.commit()
+        
         # Hole alle Kategorien und Knoten
         categories = Category.query.filter_by(parent_id=None).all()
         category_tree = [build_category_tree(cat) for cat in categories]
         
-        # Hole alle Mindmap-Knoten
-        nodes = MindMapNode.query.all()
-        node_data = []
+        # Hole alle Mindmap-Knoten außer dem "Wissen"-Knoten
+        nodes = MindMapNode.query.filter(MindMapNode.id != wissen_node.id).all()
         
+        # Vorbereiten der Node- und Edge-Arrays für die Antwort
+        node_data = []
+        edge_data = []
+        
+        # Zuerst den "Wissen"-Knoten hinzufügen
+        node_data.append({
+            'id': wissen_node.id,
+            'name': wissen_node.name,
+            'description': wissen_node.description or '',
+            'color_code': wissen_node.color_code or '#4299E1',
+            'thought_count': len(wissen_node.thoughts),
+            'category_id': wissen_node.category_id
+        })
+        
+        # Dann die anderen Knoten
         for node in nodes:
             node_obj = {
                 'id': node.id,
@@ -1497,15 +1555,28 @@ def refresh_mindmap():
                 'category_id': node.category_id
             }
             
-            # Verbindungen hinzufügen
-            node_obj['connections'] = [{'target': child.id} for child in node.children]
+            # Verbinde alle Top-Level-Knoten mit dem Wissen-Knoten
+            if not node.parents.all():
+                edge_data.append({
+                    'source': wissen_node.id,
+                    'target': node.id
+                })
+            
+            # Verbindungen zwischen vorhandenen Knoten hinzufügen
+            node_children = node.children.all()
+            for child in node_children:
+                edge_data.append({
+                    'source': node.id,
+                    'target': child.id
+                })
             
             node_data.append(node_obj)
         
         return jsonify({
             'success': True,
             'categories': category_tree,
-            'nodes': node_data
+            'nodes': node_data,
+            'edges': edge_data
         })
         
     except Exception as e:
@@ -1515,21 +1586,46 @@ def refresh_mindmap():
             'error': 'Datenbankverbindung konnte nicht hergestellt werden'
         }), 500
 
-
 # Route zur Mindmap HTML-Seite
 @app.route('/mindmap')
 def mindmap_page():
     return render_template('mindmap.html')
 
-# Fehlerbehandlung
-@app.errorhandler(404)
-def not_found(e):
-    return jsonify({'error': 'Nicht gefunden'}), 404
+# Einfache Umleitungen für Community/Forum-Routen
+@app.route('/community')
+@app.route('/Community')
+@app.route('/forum')
+@app.route('/Forum')
+@app.route('/community_forum')
+def redirect_to_index():
+    """Leitet alle Community/Forum-URLs zur Startseite um"""
+    return redirect(url_for('index'))
 
-@app.errorhandler(400)
-def bad_request(e):
-    return jsonify({'error': 'Fehlerhafte Anfrage'}), 400
+@app.route('/static/js/mindmap-init.js')
+def serve_mindmap_init_js():
+    """Bedient die Mindmap-Initialisierungsdatei."""
+    return app.send_static_file('js/mindmap-init.js'), 200, {'Content-Type': 'application/javascript'}
 
-@app.errorhandler(500)
-def server_error(e):
-    return jsonify({'error': 'Serverfehler'}), 500
+# Datenbank-Update-Route (admin-geschützt)
+@app.route('/admin/update-database', methods=['GET', 'POST'])
+@admin_required
+def admin_update_database():
+    """Admin-Route zum Aktualisieren der Datenbank"""
+    message = None
+    success = None
+    
+    if request.method == 'POST':
+        try:
+            import update_db
+            update_success = update_db.update_user_table()
+            if update_success:
+                message = "Die Datenbank wurde erfolgreich aktualisiert."
+                success = True
+            else:
+                message = "Es gab ein Problem bei der Aktualisierung der Datenbank."
+                success = False
+        except Exception as e:
+            message = f"Fehler: {str(e)}"
+            success = False
+    
+    return render_template('admin/update_database.html', message=message, success=success)

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3.9'
+
+services:
+  web:
+    build: .
+    image: systades_app:latest
+    container_name: systades_app
+    restart: always
+    env_file:
+      - .env
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./database:/app/database
+
+volumes:
+  db_data: 

edit_file

@@ -0,0 +1 @@
+ 

example.env

@@ -2,10 +2,12 @@
 # Kopiere diese Datei zu .env und passe die Werte an
 
 # Flask
-SECRET_KEY=dein-geheimer-schluessel-hier
+FLASK_APP=app.py
+FLASK_ENV=development
+SECRET_KEY=your-secret-key-replace-in-production
 
 # OpenAI API
-OPENAI_API_KEY=sk-dein-openai-api-schluessel-hier
+
 
 # Datenbank
 # Bei Bedarf kann hier eine andere Datenbank-URL angegeben werden

migrations/versions/add_missing_user_fields.py

@@ -0,0 +1,40 @@
+"""Add missing user fields
+
+Revision ID: 5a23f8c6db37
+Revises: d4406f5b12f7
+Create Date: 2025-05-02 10:45:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5a23f8c6db37'
+down_revision = 'd4406f5b12f7'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('bio', sa.Text(), nullable=True))
+        batch_op.add_column(sa.Column('location', sa.String(length=100), nullable=True))
+        batch_op.add_column(sa.Column('website', sa.String(length=200), nullable=True))
+        batch_op.add_column(sa.Column('avatar', sa.String(length=200), nullable=True))
+        batch_op.add_column(sa.Column('last_login', sa.DateTime(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.drop_column('last_login')
+        batch_op.drop_column('avatar')
+        batch_op.drop_column('website')
+        batch_op.drop_column('location')
+        batch_op.drop_column('bio')
+
+    # ### end Alembic commands ### 

models.py

@@ -53,11 +53,20 @@ class User(db.Model, UserMixin):
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
     is_active = db.Column(db.Boolean, default=True)
     role = db.Column(db.String(20), default="user")  # 'user', 'admin', 'moderator'
+    bio = db.Column(db.Text, nullable=True)  # Profil-Bio
+    location = db.Column(db.String(100), nullable=True)  # Standort
+    website = db.Column(db.String(200), nullable=True)  # Website
+    avatar = db.Column(db.String(200), nullable=True)  # Profilbild-URL
+    last_login = db.Column(db.DateTime, nullable=True)  # Letzter Login
     
     # Relationships
     threads = db.relationship('Thread', backref='creator', lazy=True)
     messages = db.relationship('Message', backref='author', lazy=True)
     projects = db.relationship('Project', backref='owner', lazy=True)
+    mindmaps = db.relationship('UserMindmap', backref='user', lazy=True)
+    thoughts = db.relationship('Thought', backref='author', lazy=True)
+    bookmarked_thoughts = db.relationship('Thought', secondary=user_thought_bookmark, 
+                                        lazy='dynamic', backref=db.backref('bookmarked_by', lazy='dynamic'))
     
     def __repr__(self):
         return f'<User {self.username}>'
@@ -68,6 +77,14 @@ class User(db.Model, UserMixin):
     def check_password(self, password):
         return check_password_hash(self.password, password)
         
+    @property
+    def is_admin(self):
+        return self.role == 'admin'
+
+    @is_admin.setter
+    def is_admin(self, value):
+        self.role = 'admin' if value else 'user'
+
 class Category(db.Model):
     """Wissenschaftliche Kategorien für die Gliederung der öffentlichen Mindmap"""
     id = db.Column(db.Integer, primary_key=True)
@@ -306,3 +323,40 @@ class Document(db.Model):
     
     def __repr__(self):
         return f'<Document {self.title}>'
+
+# Forum-Kategorie-Modell - entspricht den Hauptknotenpunkten der Mindmap
+class ForumCategory(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    node_id = db.Column(db.Integer, db.ForeignKey('mind_map_node.id'), nullable=False)
+    title = db.Column(db.String(200), nullable=False)
+    description = db.Column(db.Text)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    is_active = db.Column(db.Boolean, default=True)
+    
+    # Beziehungen
+    node = db.relationship('MindMapNode', backref='forum_category')
+    posts = db.relationship('ForumPost', backref='category', lazy=True, cascade="all, delete-orphan")
+    
+    def __repr__(self):
+        return f'<ForumCategory {self.title}>'
+
+# Forum-Beitrag-Modell
+class ForumPost(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    content = db.Column(db.Text, nullable=False)
+    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)
+    category_id = db.Column(db.Integer, db.ForeignKey('forum_category.id'), nullable=False)
+    parent_id = db.Column(db.Integer, db.ForeignKey('forum_post.id'), nullable=True)
+    is_pinned = db.Column(db.Boolean, default=False)
+    is_locked = db.Column(db.Boolean, default=False)
+    view_count = db.Column(db.Integer, default=0)
+    
+    # Beziehungen
+    author = db.relationship('User', backref='forum_posts')
+    replies = db.relationship('ForumPost', backref=db.backref('parent', remote_side=[id]), lazy=True)
+    
+    def __repr__(self):
+        return f'<ForumPost {self.title}>' 

start.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env powershell
+# Windows PowerShell-Version des Start-Skripts
+# Datum: 01.05.2025
+
+# Docker-Status prüfen
+Write-Host "Prüfe Docker-Status..." -ForegroundColor Cyan
+try {
+    $status = docker ps -q
+    if ($LASTEXITCODE -ne 0) {
+        Write-Host "Docker ist nicht gestartet. Bitte starten Sie Docker Desktop." -ForegroundColor Red
+        exit 1
+    }
+} catch {
+    Write-Host "Docker ist nicht verfügbar. Bitte installieren Sie Docker Desktop und starten Sie es." -ForegroundColor Red
+    Write-Host $_.Exception.Message
+    exit 1
+}
+
+# Alte Container stoppen und entfernen
+$containerExists = docker ps -a --filter "name=systades_app" -q
+if ($containerExists) {
+    Write-Host "Stoppe und entferne alten Container..." -ForegroundColor Yellow
+    docker rm -f systades_app
+}
+
+# Alte Images löschen
+Write-Host "Entferne altes Image..." -ForegroundColor Yellow
+docker rmi -f systades_app:latest
+
+# Stelle sicher, dass das Datenbankverzeichnis existiert
+if (-not (Test-Path "database")) {
+    New-Item -Path "database" -ItemType Directory -Force
+}
+
+# Docker-Compose Setup neu bauen
+Write-Host "Baue Container neu..." -ForegroundColor Green
+docker-compose build --no-cache
+
+# Docker-Compose neu starten
+Write-Host "Starte Container..." -ForegroundColor Green
+docker-compose up -d --force-recreate
+
+# Warte kurz und prüfe, ob der Container läuft
+Write-Host "Prüfe Container-Status..." -ForegroundColor Cyan
+Start-Sleep -Seconds 3
+docker ps | Select-String "systades_app"
+
+# Ausgabe
+Write-Host "`nSystemstatus:" -ForegroundColor Cyan
+Write-Host "----------------------------------------"
+Write-Host "Systades-Anwendung ist jetzt unter http://localhost:5000 erreichbar." -ForegroundColor Green
+Write-Host "Container-Logs können mit 'docker logs -f systades_app' angezeigt werden." -ForegroundColor Green
+Write-Host "----------------------------------------" 

static/541AABD7-4E37-44ED-B491-1459C8C19699.PNG

@@ -0,0 +1 @@
+ 

static/css/base-styles.css

@@ -40,8 +40,8 @@
     --light-bg: #f9fafb;
     --light-text: #1e293b;
     --light-heading: #0f172a;
-    --light-primary: #3b82f6;
-    --light-primary-hover: #4f46e5;
+    --light-primary: #7c3aed;
+    --light-primary-hover: #6d28d9;
     --light-secondary: #6b7280;
     --light-border: #e5e7eb;
     --light-card-bg: rgba(255, 255, 255, 0.92);
@@ -457,20 +457,57 @@ body:not(.dark) a:hover {
 /* Light Mode Buttons */
 body:not(.dark) .btn,
 body:not(.dark) button:not(.toggle) {
-    background-color: var(--light-primary);
+    background: linear-gradient(135deg, #6d28d9, #5b21b6);
     color: white;
     border: none;
-    box-shadow: var(--light-shadow);
-    border-radius: 0.375rem;
-    padding: 0.5rem 1rem;
-    transition: all 0.3s ease;
+    box-shadow: 0 2px 4px rgba(91, 33, 182, 0.25);
+    border-radius: 8px;
+    padding: 0.625rem 1.25rem;
+    transition: all 0.2s ease;
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
 }
 
 body:not(.dark) .btn:hover,
 body:not(.dark) button:not(.toggle):hover {
-    background-color: var(--light-primary-hover);
-    transform: translateY(-2px);
-    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.1);
+    background: linear-gradient(135deg, #7c3aed, #6d28d9);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.3);
+}
+
+/* Dark/Light Mode Switch Button */
+.theme-toggle {
+    position: relative;
+    width: 48px;
+    height: 24px;
+    background: linear-gradient(to right, #7c3aed, #3b82f6);
+    border-radius: 24px;
+    padding: 2px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.theme-toggle::after {
+    content: '';
+    position: absolute;
+    width: 20px;
+    height: 20px;
+    background: white;
+    border-radius: 50%;
+    top: 2px;
+    left: 2px;
+    transition: all 0.3s ease;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+}
+
+.theme-toggle.dark::after {
+    transform: translateX(24px);
+}
+
+.theme-toggle:hover::after {
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
 }
 
 /* Light Mode Cards und Panels */
@@ -524,3 +561,243 @@ body:not(.dark) .navbar {
     box-shadow: var(--light-shadow);
     border-bottom: 1px solid var(--light-border);
 }
+
+/* Erweiterte Light-Mode-spezifische Stile */
+body:not(.dark) .glass-effect {
+    background-color: rgba(255, 255, 255, 0.7);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    border: 1px solid rgba(209, 213, 219, 0.3);
+}
+
+body:not(.dark) .card {
+    background-color: rgba(255, 255, 255, 0.85);
+    border: 1px solid var(--light-border);
+    box-shadow: var(--light-shadow);
+    transition: all 0.3s ease;
+}
+
+body:not(.dark) .card:hover {
+    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+    transform: translateY(-2px);
+}
+
+/* Light Mode Buttons mit verbesserter Lesbarkeit */
+body:not(.dark) .btn-primary {
+    background: linear-gradient(135deg, #6d28d9, #5b21b6);
+    color: white;
+    border: none;
+    transition: all 0.2s ease;
+    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    box-shadow: 0 2px 4px rgba(91, 33, 182, 0.3);
+    border-radius: 8px;
+}
+
+body:not(.dark) .btn-primary:hover {
+    background: linear-gradient(135deg, #7c3aed, #6d28d9);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.4), 0 2px 4px rgba(0, 0, 0, 0.1);
+    transform: translateY(-1px);
+}
+
+body:not(.dark) .btn-secondary {
+    background: linear-gradient(135deg, #ffffff, #f9fafb);
+    color: #1f2937;
+    border: 2px solid #e5e7eb;
+    font-weight: 600;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
+    border-radius: 8px;
+}
+
+body:not(.dark) .btn-secondary:hover {
+    background: linear-gradient(135deg, #f9fafb, #f3f4f6);
+    border-color: #d1d5db;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
+    transform: translateY(-1px);
+}
+
+body:not(.dark) .btn-outline {
+    background-color: transparent;
+    color: var(--light-primary);
+    border: 1px solid var(--light-primary);
+}
+
+body:not(.dark) .btn-outline:hover {
+    background-color: rgba(124, 58, 237, 0.05);
+}
+
+/* Light Mode Formulare */
+body:not(.dark) input, 
+body:not(.dark) select, 
+body:not(.dark) textarea {
+    background-color: white;
+    border: 1px solid #d1d5db;
+    color: #1f2937;
+}
+
+body:not(.dark) input:focus, 
+body:not(.dark) select:focus, 
+body:not(.dark) textarea:focus {
+    border-color: var(--light-primary);
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+}
+
+/* Light Mode Navigation */
+body:not(.dark) .sidebar {
+    background-color: white;
+    border-right: 1px solid #e5e7eb;
+}
+
+body:not(.dark) .sidebar-link {
+    color: #4b5563;
+}
+
+body:not(.dark) .sidebar-link:hover {
+    background-color: #f3f4f6;
+    color: var(--light-primary);
+}
+
+body:not(.dark) .sidebar-link.active {
+    background-color: rgba(124, 58, 237, 0.08);
+    color: var(--light-primary);
+    font-weight: 500;
+}
+
+/* Light Mode Tabellen */
+body:not(.dark) table {
+    border-color: #e5e7eb;
+}
+
+body:not(.dark) th {
+    background-color: #f9fafb;
+    color: #111827;
+    font-weight: 600;
+}
+
+body:not(.dark) tr:nth-child(even) {
+    background-color: #f9fafb;
+}
+
+body:not(.dark) tr:hover {
+    background-color: #f3f4f6;
+}
+
+/* Light Mode Icons */
+body:not(.dark) .icon {
+    color: #6b7280;
+}
+
+body:not(.dark) .icon-primary {
+    color: var(--light-primary);
+}
+
+/* Light Mode Alerts/Benachrichtigungen */
+body:not(.dark) .alert-info {
+    background-color: #eff6ff;
+    border-left: 4px solid #3b82f6;
+    color: #1e40af;
+}
+
+body:not(.dark) .alert-success {
+    background-color: #ecfdf5;
+    border-left: 4px solid #10b981;
+    color: #065f46;
+}
+
+body:not(.dark) .alert-warning {
+    background-color: #fffbeb;
+    border-left: 4px solid #f59e0b;
+    color: #92400e;
+}
+
+body:not(.dark) .alert-error {
+    background-color: #fef2f2;
+    border-left: 4px solid #ef4444;
+    color: #b91c1c;
+}
+
+/* Light Mode Badge */
+body:not(.dark) .badge {
+    background-color: #e5e7eb;
+    color: #374151;
+}
+
+body:not(.dark) .badge-primary {
+    background-color: rgba(124, 58, 237, 0.1);
+    color: var(--light-primary);
+}
+
+/* Light Mode Mindmap spezifisch */
+body:not(.dark) #cy {
+    background-color: rgba(255, 255, 255, 0.7);
+    border: 1px solid #e5e7eb;
+}
+
+body:not(.dark) .node {
+    border: 2px solid white;
+    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .node:hover,
+body:not(.dark) .node.selected {
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.5), 0 4px 8px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .edge {
+    opacity: 0.7;
+}
+
+body:not(.dark) .edge:hover,
+body:not(.dark) .edge.selected {
+    opacity: 1;
+}
+
+/* Footer im Light Mode */
+body:not(.dark) footer {
+    background-color: rgba(249, 250, 251, 0.7);
+    border-top: 1px solid #e5e7eb;
+}
+
+/* Alpine.js Transitions im Light Mode */
+body:not(.dark) [x-cloak] {
+    display: none !important;
+}
+
+/* Suchfeldstyling im Light Mode */
+body:not(.dark) .search-container input {
+    background-color: white;
+    border: 1px solid #d1d5db;
+    color: #1f2937;
+}
+
+body:not(.dark) .search-container input:focus {
+    border-color: var(--light-primary);
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+}
+
+body:not(.dark) .search-results {
+    background-color: white;
+    border: 1px solid #e5e7eb;
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+}
+
+body:not(.dark) .search-result-item:hover {
+    background-color: #f3f4f6;
+}
+
+/* Profile und Benutzermenü im Light Mode */
+body:not(.dark) .avatar {
+    border: 2px solid white;
+    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .user-dropdown {
+    background-color: white;
+    border: 1px solid #e5e7eb;
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+}
+
+body:not(.dark) .user-dropdown-item:hover {
+    background-color: #f3f4f6;
+} 

static/img/favicon-gen.py

@@ -1,25 +1,54 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+"""
+Generate favicon.ico from SVG using cairosvg and PIL
+"""
 
 import os
+import io
+from cairosvg import svg2png
 from PIL import Image
-import cairosvg
 
-# Pfad zum SVG-Favicon
-svg_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.svg')
-# Ausgabepfad für das PNG
-png_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.png')
-# Ausgabepfad für das ICO
-ico_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.ico')
+# Verzeichnis dieses Skripts
+CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
 
-# SVG zu PNG konvertieren
-cairosvg.svg2png(url=svg_path, write_to=png_path, output_width=512, output_height=512)
+def svg_to_ico(svg_path, ico_path, sizes=[16, 32, 48, 64, 128, 256]):
+    """Convert SVG to multi-size ICO file"""
+    img_io = io.BytesIO()
     
-# PNG zu ICO konvertieren
-img = Image.open(png_path)
-img.save(ico_path, sizes=[(16, 16), (32, 32), (48, 48), (64, 64), (128, 128)])
+    # Höchste Auflösung für Zwischenspeicherung
+    max_size = max(sizes)
     
-print(f"Favicon erfolgreich erstellt: {ico_path}")
+    # SVG in PNG konvertieren
+    with open(svg_path, 'rb') as svg_file:
+        svg_data = svg_file.read()
+        svg2png(bytestring=svg_data, write_to=img_io, output_width=max_size, output_height=max_size)
     
-# Optional: PNG-Datei löschen, wenn nur ICO benötigt wird
-# os.remove(png_path) 
+    # PNG in verschiedene Größen konvertieren
+    img = Image.open(img_io)
+    
+    # Alle Größen für das ICO-Format vorbereiten
+    img_list = []
+    for size in sizes:
+        resized_img = img.resize((size, size), Image.LANCZOS)
+        img_list.append(resized_img)
+    
+    # ICO-Datei speichern
+    img_list[0].save(
+        ico_path,
+        format='ICO',
+        sizes=[(img.width, img.height) for img in img_list],
+        append_images=img_list[1:]
+    )
+    print(f"Favicon {ico_path} wurde erstellt!")
+
+# Ursprüngliches Favicon konvertieren
+svg_to_ico(
+    os.path.join(CURRENT_DIR, 'favicon.svg'),
+    os.path.join(CURRENT_DIR, 'favicon.ico')
+)
+
+# Neues Neuron-Favicon konvertieren
+svg_to_ico(
+    os.path.join(CURRENT_DIR, 'neuron-favicon.svg'),
+    os.path.join(CURRENT_DIR, 'neuron-favicon.ico')
+) 

static/img/neuron-favicon.svg

@@ -0,0 +1,29 @@
+<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Hintergrund -->
+  <rect width="32" height="32" rx="8" fill="#6d28d9" />
+  
+  <!-- Mindmap-Punkte -->
+  <!-- Zentraler Punkt -->
+  <circle cx="16" cy="16" r="3.5" fill="#a78bfa" />
+  
+  <!-- Umgebende Punkte -->
+  <circle cx="8" cy="10" r="2.5" fill="#8b5cf6" />
+  <circle cx="24" cy="10" r="2.5" fill="#8b5cf6" />
+  <circle cx="16" cy="26" r="2.5" fill="#8b5cf6" />
+  
+  <!-- Verbindende Linien -->
+  <path d="M16 16 L8 10" stroke="white" stroke-width="1" stroke-linecap="round" />
+  <path d="M16 16 L24 10" stroke="white" stroke-width="1" stroke-linecap="round" />
+  <path d="M16 16 L16 26" stroke="white" stroke-width="1" stroke-linecap="round" />
+  
+  <!-- Weitere Verbindungslinien für mehr Komplexität -->
+  <path d="M8 10 L16 26" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  <path d="M24 10 L16 26" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  <path d="M8 10 L24 10" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  
+  <!-- Kleine Dekoration-Punkte für Hintergrund-Ähnlichkeit -->
+  <circle cx="5" cy="20" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="27" cy="20" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="20" cy="5" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="12" cy="5" r="0.8" fill="#ddd6fe" opacity="0.7" />
+</svg>

static/img/neuron-logo.svg

@@ -0,0 +1,59 @@
+<svg width="64" height="64" viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Hintergrund mit Farbverlauf -->
+  <rect width="64" height="64" rx="16" fill="url(#paint0_linear)" />
+  
+  <!-- Mindmap-Punkte -->
+  <!-- Zentraler Punkt -->
+  <circle cx="32" cy="32" r="8" fill="url(#glow_gradient)" filter="url(#glow)" />
+  
+  <!-- Umgebende Punkte -->
+  <circle cx="16" cy="20" r="6" fill="#8b5cf6" />
+  <circle cx="48" cy="20" r="6" fill="#8b5cf6" />
+  <circle cx="32" cy="52" r="6" fill="#8b5cf6" />
+  <circle cx="16" cy="48" r="4" fill="#a78bfa" />
+  <circle cx="48" cy="48" r="4" fill="#a78bfa" />
+  
+  <!-- Verbindende Linien (Hauptpfade) -->
+  <path d="M32 32 L16 20" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L48 20" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L32 52" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L16 48" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L48 48" stroke="white" stroke-width="2" stroke-linecap="round" />
+  
+  <!-- Zusätzliche Verbindungslinien -->
+  <path d="M16 20 L16 48" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M48 20 L48 48" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M16 20 L48 20" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M16 48 L32 52" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M48 48 L32 52" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  
+  <!-- Kleine Dekoration-Punkte für Hintergrund-Ähnlichkeit -->
+  <circle cx="10" cy="36" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="54" cy="36" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="40" cy="10" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="24" cy="10" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="20" cy="36" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  <circle cx="44" cy="36" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  <circle cx="32" cy="16" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  
+  <!-- Definitionen für Farbverläufe und Effekte -->
+  <defs>
+    <!-- Haupthintergrund-Farbverlauf -->
+    <linearGradient id="paint0_linear" x1="0" y1="0" x2="64" y2="64" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#6d28d9" />
+      <stop offset="1" stop-color="#4c1d95" />
+    </linearGradient>
+    
+    <!-- Glüheffekt für den zentralen Punkt -->
+    <filter id="glow" x="20" y="20" width="24" height="24" filterUnits="userSpaceOnUse">
+      <feGaussianBlur stdDeviation="2" result="blur" />
+      <feComposite in="SourceGraphic" in2="blur" operator="over" />
+    </filter>
+    
+    <!-- Farbverlauf für den zentralen Punkt -->
+    <linearGradient id="glow_gradient" x1="24" y1="24" x2="40" y2="40" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#a78bfa" />
+      <stop offset="1" stop-color="#8b5cf6" />
+    </linearGradient>
+  </defs>
+</svg>

static/js/mindmap-init.js

@@ -0,0 +1,420 @@
+/**
+ * Mindmap-Initialisierer
+ * Lädt und initialisiert die Mindmap-Visualisierung
+ */
+
+// Warte bis DOM geladen ist
+document.addEventListener('DOMContentLoaded', function() {
+    // Prüfe, ob wir auf der Mindmap-Seite sind
+    const cyContainer = document.getElementById('cy');
+    
+    if (!cyContainer) {
+        console.log('Kein Mindmap-Container gefunden, überspringe Initialisierung.');
+        return;
+    }
+    
+    console.log('Initialisiere Mindmap-Visualisierung...');
+    
+    // Prüfe, ob Cytoscape.js verfügbar ist
+    if (typeof cytoscape === 'undefined') {
+        loadScript('/static/js/cytoscape.min.js', initMindmap);
+    } else {
+        initMindmap();
+    }
+});
+
+/**
+ * Lädt ein Script dynamisch
+ * @param {string} src - Quelldatei
+ * @param {Function} callback - Callback nach dem Laden
+ */
+function loadScript(src, callback) {
+    const script = document.createElement('script');
+    script.src = src;
+    script.onload = callback;
+    document.head.appendChild(script);
+}
+
+/**
+ * Initialisiert die Mindmap-Visualisierung
+ */
+function initMindmap() {
+    const cyContainer = document.getElementById('cy');
+    const fitBtn = document.getElementById('fit-btn');
+    const resetBtn = document.getElementById('reset-btn');
+    const toggleLabelsBtn = document.getElementById('toggle-labels-btn');
+    const nodeInfoPanel = document.getElementById('node-info-panel');
+    const nodeDescription = document.getElementById('node-description');
+    const connectedNodes = document.getElementById('connected-nodes');
+    
+    let labelsVisible = true;
+    let selectedNode = null;
+    
+    // Erstelle Cytoscape-Instanz
+    const cy = cytoscape({
+        container: cyContainer,
+        style: getDefaultStyles(),
+        layout: {
+            name: 'cose',
+            animate: true,
+            animationDuration: 800,
+            nodeDimensionsIncludeLabels: true,
+            padding: 50,
+            spacingFactor: 1.2,
+            randomize: true,
+            componentSpacing: 100,
+            nodeRepulsion: 8000,
+            edgeElasticity: 100,
+            nestingFactor: 1.2,
+            gravity: 80
+        },
+        wheelSensitivity: 0.3,
+    });
+    
+    // Daten vom Server laden
+    loadMindmapData(cy);
+    
+    // Event-Handler zuweisen
+    setupEventListeners(cy, fitBtn, resetBtn, toggleLabelsBtn, nodeInfoPanel, nodeDescription, connectedNodes);
+}
+
+/**
+ * Lädt die Mindmap-Daten vom Server
+ * @param {Object} cy - Cytoscape-Instanz
+ */
+function loadMindmapData(cy) {
+    fetch('/api/mindmap')
+        .then(response => {
+            if (!response.ok) {
+                throw new Error(`HTTP Fehler: ${response.status}`);
+            }
+            return response.json();
+        })
+        .then(data => {
+            if (!data.nodes || data.nodes.length === 0) {
+                console.log('Keine Daten gefunden, versuche Refresh-API...');
+                return fetch('/api/refresh-mindmap')
+                    .then(response => {
+                        if (!response.ok) {
+                            throw new Error(`HTTP Fehler beim Refresh: ${response.status}`);
+                        }
+                        return response.json();
+                    });
+            }
+            return data;
+        })
+        .then(data => {
+            console.log('Mindmap-Daten geladen:', data);
+            
+            // Cytoscape-Elemente vorbereiten
+            const elements = [];
+            
+            // Prüfen, ob "Wissen"-Knoten existiert
+            let rootNode = data.nodes.find(node => node.name === "Wissen");
+            
+            // Wenn nicht, Root-Knoten hinzufügen
+            if (!rootNode) {
+                rootNode = {
+                    id: 'root',
+                    name: 'Wissen',
+                    description: 'Zentrale Wissensbasis',
+                    color_code: '#4299E1'
+                };
+                data.nodes.unshift(rootNode);
+            }
+            
+            // Knoten hinzufügen
+            data.nodes.forEach(node => {
+                elements.push({
+                    group: 'nodes',
+                    data: {
+                        id: node.id.toString(),
+                        name: node.name,
+                        description: node.description || '',
+                        color: node.color_code || '#8B5CF6',
+                        isRoot: node.name === 'Wissen'
+                    }
+                });
+            });
+            
+            // Kanten hinzufügen, wenn vorhanden
+            if (data.edges && data.edges.length > 0) {
+                data.edges.forEach(edge => {
+                    elements.push({
+                        group: 'edges',
+                        data: {
+                            id: `${edge.source}-${edge.target}`,
+                            source: edge.source.toString(),
+                            target: edge.target.toString()
+                        }
+                    });
+                });
+            } else {
+                // Wenn keine Kanten definiert sind, verbinde alle Knoten mit dem Root-Knoten
+                const rootId = rootNode.id.toString();
+                
+                data.nodes.forEach(node => {
+                    if (node.id.toString() !== rootId) {
+                        elements.push({
+                            group: 'edges',
+                            data: {
+                                id: `${rootId}-${node.id}`,
+                                source: rootId,
+                                target: node.id.toString()
+                            }
+                        });
+                    }
+                });
+            }
+            
+            // Elemente zu Cytoscape hinzufügen
+            cy.elements().remove();
+            cy.add(elements);
+            
+            // Layout anwenden
+            cy.layout({
+                name: 'cose',
+                animate: true,
+                animationDuration: 800,
+                nodeDimensionsIncludeLabels: true,
+                padding: 50,
+                spacingFactor: 1.5,
+                randomize: false,
+                fit: true
+            }).run();
+            
+            // Nach dem Laden Event auslösen
+            document.dispatchEvent(new CustomEvent('mindmap-loaded'));
+        })
+        .catch(error => {
+            console.error('Fehler beim Laden der Mindmap-Daten:', error);
+            
+            // Fallback mit Standard-Daten
+            const fallbackData = {
+                nodes: [
+                    { id: 1, name: 'Wissen', description: 'Zentrale Wissensbasis', color_code: '#4299E1' },
+                    { id: 2, name: 'Philosophie', description: 'Philosophisches Denken', color_code: '#9F7AEA' },
+                    { id: 3, name: 'Wissenschaft', description: 'Wissenschaftliche Erkenntnisse', color_code: '#48BB78' },
+                    { id: 4, name: 'Technologie', description: 'Technologische Entwicklungen', color_code: '#ED8936' },
+                    { id: 5, name: 'Künste', description: 'Künstlerische Ausdrucksformen', color_code: '#ED64A6' }
+                ],
+                edges: [
+                    { source: 1, target: 2 },
+                    { source: 1, target: 3 },
+                    { source: 1, target: 4 },
+                    { source: 1, target: 5 }
+                ]
+            };
+            
+            const fallbackElements = [];
+            
+            // Knoten hinzufügen
+            fallbackData.nodes.forEach(node => {
+                fallbackElements.push({
+                    group: 'nodes',
+                    data: {
+                        id: node.id.toString(),
+                        name: node.name,
+                        description: node.description || '',
+                        color: node.color_code || '#8B5CF6',
+                        isRoot: node.name === 'Wissen'
+                    }
+                });
+            });
+            
+            // Kanten hinzufügen
+            fallbackData.edges.forEach(edge => {
+                fallbackElements.push({
+                    group: 'edges',
+                    data: {
+                        id: `${edge.source}-${edge.target}`,
+                        source: edge.source.toString(),
+                        target: edge.target.toString()
+                    }
+                });
+            });
+            
+            // Elemente zu Cytoscape hinzufügen
+            cy.elements().remove();
+            cy.add(fallbackElements);
+            
+            // Layout anwenden
+            cy.layout({ name: 'cose', animate: true }).run();
+        });
+}
+
+/**
+ * Richtet Event-Listener für die Mindmap ein
+ * @param {Object} cy - Cytoscape-Instanz
+ * @param {HTMLElement} fitBtn - Fit-Button
+ * @param {HTMLElement} resetBtn - Reset-Button
+ * @param {HTMLElement} toggleLabelsBtn - Toggle-Labels-Button
+ * @param {HTMLElement} nodeInfoPanel - Node-Info-Panel
+ * @param {HTMLElement} nodeDescription - Node-Description
+ * @param {HTMLElement} connectedNodes - Connected-Nodes-Container
+ */
+function setupEventListeners(cy, fitBtn, resetBtn, toggleLabelsBtn, nodeInfoPanel, nodeDescription, connectedNodes) {
+    let labelsVisible = true;
+    
+    // Fit-Button
+    if (fitBtn) {
+        fitBtn.addEventListener('click', function() {
+            cy.fit();
+        });
+    }
+    
+    // Reset-Button
+    if (resetBtn) {
+        resetBtn.addEventListener('click', function() {
+            cy.layout({ name: 'cose', animate: true }).run();
+        });
+    }
+    
+    // Toggle-Labels-Button
+    if (toggleLabelsBtn) {
+        toggleLabelsBtn.addEventListener('click', function() {
+            labelsVisible = !labelsVisible;
+            cy.style()
+                .selector('node')
+                .style({
+                    'text-opacity': labelsVisible ? 1 : 0
+                })
+                .update();
+        });
+    }
+    
+    // Knoten-Klick
+    cy.on('tap', 'node', function(evt) {
+        const node = evt.target;
+        
+        // Zuvor ausgewählten Knoten zurücksetzen
+        cy.nodes().removeClass('selected');
+        
+        // Neuen Knoten auswählen
+        node.addClass('selected');
+        
+        if (nodeInfoPanel && nodeDescription && connectedNodes) {
+            // Info-Panel aktualisieren
+            nodeDescription.textContent = node.data('description') || 'Keine Beschreibung verfügbar.';
+            
+            // Verbundene Knoten anzeigen
+            connectedNodes.innerHTML = '';
+            
+            // Verbundene Knoten sammeln
+            const connectedNodesList = node.neighborhood('node');
+            
+            if (connectedNodesList.length > 0) {
+                connectedNodesList.forEach(connectedNode => {
+                    // Nicht den ausgewählten Knoten selbst anzeigen
+                    if (connectedNode.id() !== node.id()) {
+                        const nodeLink = document.createElement('span');
+                        nodeLink.className = 'node-link';
+                        nodeLink.textContent = connectedNode.data('name');
+                        nodeLink.style.backgroundColor = connectedNode.data('color');
+                        
+                        // Klick-Ereignis, um zu diesem Knoten zu wechseln
+                        nodeLink.addEventListener('click', function() {
+                            connectedNode.select();
+                            cy.animate({
+                                center: { eles: connectedNode },
+                                duration: 500,
+                                easing: 'ease-in-out-cubic'
+                            });
+                        });
+                        
+                        connectedNodes.appendChild(nodeLink);
+                    }
+                });
+            } else {
+                connectedNodes.innerHTML = '<em>Keine verbundenen Knoten</em>';
+            }
+            
+            // Panel anzeigen
+            nodeInfoPanel.classList.add('visible');
+        }
+    });
+    
+    // Hintergrund-Klick
+    cy.on('tap', function(evt) {
+        if (evt.target === cy) {
+            // Klick auf den Hintergrund
+            cy.nodes().removeClass('selected');
+            
+            // Info-Panel verstecken
+            if (nodeInfoPanel) {
+                nodeInfoPanel.classList.remove('visible');
+            }
+        }
+    });
+    
+    // Dark Mode-Änderungen
+    document.addEventListener('darkModeToggled', function(event) {
+        const isDark = event.detail.isDark;
+        cy.style(getDefaultStyles(isDark));
+    });
+}
+
+/**
+ * Liefert die Standard-Stile für die Mindmap
+ * @param {boolean} darkMode - Ob der Dark Mode aktiv ist
+ * @returns {Array} Array von Cytoscape-Stilen
+ */
+function getDefaultStyles(darkMode = document.documentElement.classList.contains('dark')) {
+    return [
+        {
+            selector: 'node',
+            style: {
+                'background-color': 'data(color)',
+                'label': 'data(name)',
+                'width': 40,
+                'height': 40,
+                'font-size': 12,
+                'text-valign': 'bottom',
+                'text-halign': 'center',
+                'text-margin-y': 8,
+                'color': darkMode ? '#f1f5f9' : '#334155',
+                'text-background-color': darkMode ? 'rgba(30, 41, 59, 0.8)' : 'rgba(241, 245, 249, 0.8)',
+                'text-background-opacity': 0.8,
+                'text-background-padding': '2px',
+                'text-background-shape': 'roundrectangle',
+                'text-wrap': 'ellipsis',
+                'text-max-width': '100px'
+            }
+        },
+        {
+            selector: 'node[?isRoot]',
+            style: {
+                'width': 60,
+                'height': 60,
+                'font-size': 14,
+                'font-weight': 'bold',
+                'text-background-opacity': 0.9,
+                'text-background-color': '#4299E1'
+            }
+        },
+        {
+            selector: 'edge',
+            style: {
+                'width': 2,
+                'line-color': darkMode ? 'rgba(255, 255, 255, 0.15)' : 'rgba(30, 41, 59, 0.15)',
+                'target-arrow-color': darkMode ? 'rgba(255, 255, 255, 0.15)' : 'rgba(30, 41, 59, 0.15)',
+                'curve-style': 'bezier',
+                'target-arrow-shape': 'triangle'
+            }
+        },
+        {
+            selector: 'node.selected',
+            style: {
+                'background-color': 'data(color)',
+                'border-width': 3,
+                'border-color': '#8b5cf6',
+                'width': 50,
+                'height': 50,
+                'font-size': 14,
+                'font-weight': 'bold',
+                'text-background-color': '#8b5cf6',
+                'text-background-opacity': 0.9
+            }
+        }
+    ];
+} 

static/neural-network-background-full.js

@@ -18,11 +18,11 @@ class NeuralNetworkBackground {
     
     // Standardkonfiguration mit subtileren Werten
     this.config = {
-      nodeCount: 50,            // Weniger Knoten
+      nodeCount: 30,            // Weniger Knoten
       nodeSize: 1.2,            // Kleinere Knoten
       connectionDistance: 150,  // Reduzierte Verbindungsdistanz
       connectionOpacity: 0.3,   // Sanftere Verbindungslinien
-      clusterCount: 2,          // Weniger Cluster
+      clusterCount: 6,          // Weniger Cluster
       clusterRadius: 380,       // Größerer Cluster-Radius für mehr Verteilung
       animationSpeed: 0.25,     // Langsamere Animation
       flowDensity: 0.05,        // Deutlich weniger Flussanimationen

templates/admin/update_database.html

@@ -0,0 +1,46 @@
+{% extends "base.html" %}
+
+{% block title %}Datenbank aktualisieren{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-10">
+  <div class="bg-gray-800 bg-opacity-70 rounded-lg p-6 mb-6">
+    <h1 class="text-2xl font-bold text-purple-400 mb-4">Datenbank aktualisieren</h1>
+    
+    {% if message %}
+      <div class="mb-6 p-4 rounded-lg {{ 'bg-green-800 bg-opacity-50' if success else 'bg-red-800 bg-opacity-50' }}">
+        <p class="text-white">{{ message }}</p>
+      </div>
+    {% endif %}
+    
+    <div class="mb-6">
+      <p class="text-gray-300 mb-4">
+        Diese Funktion aktualisiert die Datenbankstruktur, um mit dem aktuellen Datenmodell kompatibel zu sein.
+        Dabei werden folgende Änderungen vorgenommen:
+      </p>
+      
+      <ul class="list-disc pl-6 text-gray-300 mb-6">
+        <li>Hinzufügen von <code>bio</code>, <code>location</code>, <code>website</code>, <code>avatar</code> und <code>last_login</code> zur Benutzer-Tabelle</li>
+      </ul>
+      
+      <div class="bg-yellow-800 bg-opacity-30 p-4 rounded-lg mb-6">
+        <p class="text-yellow-200">
+          <i class="fas fa-exclamation-triangle mr-2"></i>
+          <strong>Warnung:</strong> Bitte stelle sicher, dass du ein Backup der Datenbank erstellt hast, bevor du fortfährst.
+        </p>
+      </div>
+    </div>
+    
+    <form method="POST" action="{{ url_for('admin_update_database') }}">
+      <div class="flex justify-between">
+        <a href="{{ url_for('index') }}" class="px-4 py-2 bg-gray-700 text-white rounded-lg hover:bg-gray-600">
+          Zurück zur Startseite
+        </a>
+        <button type="submit" class="px-4 py-2 bg-purple-700 text-white rounded-lg hover:bg-purple-600">
+          Datenbank aktualisieren
+        </button>
+      </div>
+    </form>
+  </div>
+</div>
+{% endblock %} 

templates/base.html

@@ -6,8 +6,7 @@
     <title>Systades - {% block title %}{% endblock %}</title>
     
     <!-- Favicon -->
-    <link rel="icon" href="{{ url_for('static', filename='img/favicon.svg') }}" type="image/svg+xml">
-    <link rel="icon" href="{{ url_for('static', filename='img/favicon.ico') }}" sizes="any">
+    <link rel="icon" href="{{ url_for('static', filename='img/neuron-favicon.svg') }}" type="image/svg+xml">
     
     <!-- Meta Tags -->
     <meta name="description" content="Eine interaktive Plattform zum Visualisieren, Erforschen und Teilen von Wissen">
@@ -59,6 +58,20 @@
                 800: '#0e1220',
                 900: '#0a0e19'
               }
+            },
+            keyframes: {
+              float: {
+                '0%, 100%': { transform: 'translateY(0)' },
+                '50%': { transform: 'translateY(-5px)' }
+              },
+              'bounce-slow': {
+                '0%, 100%': { transform: 'translateY(0)' },
+                '50%': { transform: 'translateY(-8px)' }
+              }
+            },
+            animation: {
+              float: 'float 3s ease-in-out infinite',
+              'bounce-slow': 'bounce-slow 2s ease-in-out infinite'
             }
           }
         }
@@ -69,8 +82,8 @@
     <link href="{{ url_for('static', filename='fonts/inter.css') }}" rel="stylesheet">
     <link href="{{ url_for('static', filename='fonts/jetbrains-mono.css') }}" rel="stylesheet">
     
-    <!-- Icons - Self-hosted Font Awesome -->
-    <link href="{{ url_for('static', filename='css/all.min.css') }}" rel="stylesheet">
+    <!-- Font Awesome vom CDN -->
+    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css" rel="stylesheet">
     
     <!-- Assistent CSS -->
     <link href="{{ url_for('static', filename='css/assistant.css') }}" rel="stylesheet">
@@ -111,18 +124,20 @@
     <!-- Seitenspezifische Styles -->
     {% block extra_css %}{% endblock %}
     
-    <!-- Custom dark mode styles -->
+    <!-- Custom dark/light mode styles -->
     <!-- ► ►  Farb‑Token strikt getrennt  ◄ ◄ -->
     <style>
         /* Light‑Mode */
         :root {
-          --bg-primary:#f4f6fa;
-          --bg-secondary:#e9ecf3;
+          --bg-primary:#f8fafc;
+          --bg-secondary:#f1f5f9;
           --text-primary:#232837;
           --text-secondary:#475569;
           --accent-primary:#7c3aed;
           --accent-secondary:#8b5cf6;
           --glow-effect:0 0 8px rgba(139,92,246,.08);
+          background-image: linear-gradient(to bottom right, rgba(248, 250, 252, 0.8), rgba(241, 245, 249, 0.8));
+          background-attachment: fixed;
         }
         /* Dark‑Mode */
         .dark {
@@ -136,7 +151,8 @@
         }
   
         body {
-          @apply min-h-screen bg-[color:var(--bg-primary)] text-[color:var(--text-primary)] transition-colors duration-300;
+          @apply min-h-screen bg-[color:var(--bg-primary)] text-[color:var(--text-primary)];
+          transition: background-color 0.5s ease-in-out, color 0.3s ease-in-out, background-image 0.5s ease-in-out;
         }
   
         /* Utilities */
@@ -149,6 +165,39 @@
         .glass-navbar { @apply glass-morphism border backdrop-blur-xl; }
         .light .glass-navbar { background-color:rgba(255,255,255,.8); border-color:rgba(0,0,0,.05); }
         .dark .glass-navbar { background-color:rgba(10,14,25,.8); border-color:rgba(255,255,255,.05); }
+
+        /* Light-Mode spezifische Stile */
+        body:not(.dark) {
+          background-color: var(--bg-primary);
+          color: var(--text-primary);
+        }
+        
+        .nav-link-light {
+          color: var(--text-secondary);
+          transition: all 0.3s ease;
+        }
+        
+        .nav-link-light:hover {
+          color: var(--text-primary);
+          background-color: rgba(126, 34, 206, 0.1);
+        }
+        
+        .nav-link-light-active {
+          color: var(--accent-primary);
+          background-color: rgba(126, 34, 206, 0.15);
+          font-weight: 500;
+        }
+        
+        /* Kartendesign im Light-Mode */
+        body:not(.dark) .card {
+          background-color: white;
+          border: 1px solid #e5e7eb;
+          box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+        }
+        
+        body:not(.dark) .card:hover {
+          box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+        }
       </style>
 </head>
 <body data-page="{{ request.endpoint }}" class="relative overflow-x-hidden dark bg-gray-900 text-white" x-data="{ 
@@ -158,6 +207,17 @@
     showSettingsModal: false,
     
     init() {
+        this.initDarkMode();
+    },
+    
+    initDarkMode() {
+        // Lade zuerst den Wert aus dem localStorage (client-seitig)
+        const storedMode = localStorage.getItem('colorMode');
+        if (storedMode) {
+            this.darkMode = storedMode === 'dark';
+        }
+        
+        // Dann hole die Server-Einstellung, die Vorrang hat
         this.fetchDarkModeFromSession();
     },
     
@@ -167,7 +227,7 @@
             .then(data => {
                 if (data.success) {
                     this.darkMode = data.darkMode === 'true';
-                    document.querySelector('html').classList.toggle('dark', this.darkMode);
+                    this.applyDarkMode();
                 }
             })
             .catch(error => {
@@ -175,9 +235,15 @@
             });
     },
     
+    applyDarkMode() {
+        document.querySelector('html').classList.toggle('dark', this.darkMode);
+        document.querySelector('body').classList.toggle('dark', this.darkMode);
+        localStorage.setItem('colorMode', this.darkMode ? 'dark' : 'light');
+    },
+    
     toggleDarkMode() {
         this.darkMode = !this.darkMode;
-        document.querySelector('html').classList.toggle('dark', this.darkMode);
+        this.applyDarkMode();
         
         fetch('/api/set_dark_mode', {
             method: 'POST',
@@ -189,7 +255,6 @@
         .then(response => response.json())
         .then(data => {
             if (data.success) {
-                localStorage.setItem('darkMode', this.darkMode ? 'dark' : 'light');
                 document.dispatchEvent(new CustomEvent('darkModeToggled', { 
                     detail: { isDark: this.darkMode } 
                 }));
@@ -210,6 +275,7 @@
             <div class="container mx-auto flex justify-between items-center">
                 <!-- Logo -->
                 <a href="{{ url_for('index') }}" class="flex items-center group">
+                    <img src="{{ url_for('static', filename='img/neuron-logo.svg') }}" alt="Systades Logo" class="w-8 h-8 mr-2 transform transition-transform group-hover:scale-110">
                     <span class="text-2xl font-bold gradient-text transform transition-transform group-hover:scale-105">Systades</span>
                 </a>
 
@@ -257,25 +323,14 @@
 
                 <!-- Rechte Seite -->
                 <div class="flex items-center space-x-4">
-                    <!-- Dark Mode Toggle Switch -->
-                    <div class="flex items-center cursor-pointer" @click="toggleDarkMode">
-                        <div class="relative w-12 h-6">
-                            <input type="checkbox" id="darkModeToggle" class="sr-only" x-model="darkMode">
-                            <div class="block w-12 h-6 rounded-full transition-colors duration-300"
-                                 x-bind:class="darkMode ? 'bg-purple-800/50' : 'bg-gray-400/50'"></div>
-                            <div class="dot absolute left-1 top-1 w-4 h-4 rounded-full transition-transform duration-300 shadow-md"
-                                 x-bind:class="darkMode ? 'bg-purple-600 transform translate-x-6' : 'bg-white'"></div>
-                        </div>
-                        <div class="ml-3 hidden sm:block" 
-                             x-bind:class="darkMode ? 'text-white/90' : 'text-gray-700'">
-                            <span x-text="darkMode ? 'Dunkel' : 'Hell'"></span>
-                        </div>
-                        <div class="ml-2 sm:hidden" 
-                             x-bind:class="darkMode ? 'text-white/90' : 'text-gray-700'">
-                            <i class="fa-solid" :class="darkMode ? 'fa-sun' : 'fa-moon'"></i>
-                        </div>
-                    </div>
-
+                    <!-- Dark/Light Mode Schalter -->
+                    <button
+                        @click="toggleDarkMode()"
+                        class="theme-toggle"
+                        :class="{ 'dark': darkMode }"
+                        aria-label="Dark Mode umschalten"
+                    >
+                    </button>
                     <!-- Profil-Link oder Login -->
                     {% if current_user.is_authenticated %}
                     <div class="relative" x-data="{ open: false }">
@@ -578,37 +633,42 @@
         });
     </script>
 
-    <!-- Dark/Light-Mode persistent und robust -->
+    <!-- Dark/Light-Mode vereinheitlicht -->
     <script>
-      (function() {
-        function applyMode(mode) {
-          if (mode === 'dark') {
-            document.documentElement.classList.add('dark');
-            localStorage.setItem('colorMode', 'dark');
+      // Globaler Zugriff für externe Skripte
+      window.MindMap = window.MindMap || {};
+      
+      window.MindMap.toggleDarkMode = function() {
+        // Alpine.js-Instanz benutzen, wenn verfügbar
+        const appEl = document.querySelector('body');
+        if (appEl && appEl.__x) {
+          appEl.__x.$data.toggleDarkMode();
         } else {
-            document.documentElement.classList.remove('dark');
-            localStorage.setItem('colorMode', 'light');
-          }
-        }
-        // Beim Laden: Präferenz aus localStorage oder System übernehmen
-        const stored = localStorage.getItem('colorMode');
-        if (stored === 'dark' || stored === 'light') {
-          applyMode(stored);
-        } else {
-          // Systempräferenz als Fallback
-          const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
-          applyMode(prefersDark ? 'dark' : 'light');
-        }
-        // Umschalter für alle Mode-Toggles
-        window.toggleColorMode = function() {
+          // Fallback: Nur classList und localStorage
           const isDark = document.documentElement.classList.contains('dark');
-          applyMode(isDark ? 'light' : 'dark');
+          document.documentElement.classList.toggle('dark', !isDark);
+          document.body.classList.toggle('dark', !isDark);
+          localStorage.setItem('colorMode', !isDark ? 'dark' : 'light');
+          
+          // Server aktualisieren
+          fetch('/api/set_dark_mode', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ darkMode: !isDark })
+          }).catch(console.error);
+        }
       };
-        // Optional: globales Event für andere Skripte
-        window.addEventListener('storage', function(e) {
-          if (e.key === 'colorMode') applyMode(e.newValue);
+      
+      // Fallback für Browser-Präferenz, falls keine Einstellung geladen werden konnte
+      document.addEventListener('DOMContentLoaded', function() {
+        if (!document.body.classList.contains('dark') && !document.documentElement.classList.contains('dark')) {
+          const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+          if (prefersDark) {
+            document.documentElement.classList.add('dark');
+            document.body.classList.add('dark');
+          }
+        }
       });
-      })();
     </script>
 </body>
 </html> 

templates/community/category.html

@@ -0,0 +1,192 @@
+{% extends 'base.html' %}
+
+{% block title %}{{ category.title }} - Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .thread-item {
+    transition: all 0.2s ease;
+  }
+  .thread-item:hover {
+    transform: translateX(2px);
+  }
+  .thread-pinned {
+    border-left-width: 4px;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium">{{ category.title }}</span>
+  </div>
+  
+  <!-- Kategorie-Header -->
+  <div class="mb-8 flex flex-wrap items-center justify-between gap-4">
+    <div class="flex items-center">
+      <!-- Kategorie-Icon -->
+      <div class="w-12 h-12 rounded-xl mr-4 flex items-center justify-center text-white" 
+           style="background-color: {{ node.color_code or '#6d28d9' }}">
+        <i class="fas {{ node.icon or 'fa-folder' }} text-2xl"></i>
+      </div>
+      
+      <!-- Kategorie-Info -->
+      <div>
+        <h1 class="text-2xl font-bold">{{ category.title }}</h1>
+        <p class="opacity-75">{{ category.description }}</p>
+      </div>
+    </div>
+    
+    <!-- Neues Thema erstellen -->
+    <a href="{{ url_for('new_post', category_id=category.id) }}" 
+       class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+       x-bind:class="darkMode 
+       ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+       : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+      <i class="fas fa-plus-circle mr-2"></i>
+      Neues Thema
+    </a>
+  </div>
+  
+  <!-- Threads anzeigen -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    
+    <!-- Header -->
+    <div class="p-4 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <div class="grid grid-cols-12 gap-4">
+        <div class="col-span-7 font-medium">Thema</div>
+        <div class="col-span-1 text-center font-medium hidden md:block">Antworten</div>
+        <div class="col-span-2 text-center font-medium hidden md:block">Autor</div>
+        <div class="col-span-2 text-center font-medium hidden md:block">Letzte Antwort</div>
+      </div>
+    </div>
+    
+    <!-- Thread-Liste -->
+    {% if threads_data %}
+      {% for thread_data in threads_data %}
+        {% set thread = thread_data.thread %}
+        <div class="thread-item p-4 border-b last:border-b-0 {{ 'thread-pinned' if thread.is_pinned }}" 
+             x-bind:class="darkMode 
+             ? 'border-white/10 hover:bg-gray-700/50 {{ 'border-l-yellow-500' if thread.is_pinned }}' 
+             : 'border-gray-200 hover:bg-gray-50 {{ 'border-l-yellow-500' if thread.is_pinned }}'">
+          <a href="{{ url_for('forum_post', post_id=thread.id) }}" class="block">
+            <div class="grid grid-cols-12 gap-4">
+              <!-- Thema -->
+              <div class="col-span-12 md:col-span-7">
+                <div class="flex items-start">
+                  <!-- Status-Icons -->
+                  <div class="flex flex-col items-center mr-3 pt-1">
+                    {% if thread.is_pinned %}
+                      <i class="fas fa-thumbtack text-yellow-500" title="Angepinnt"></i>
+                    {% endif %}
+                    {% if thread.is_locked %}
+                      <i class="fas fa-lock text-red-500 mt-1" title="Gesperrt"></i>
+                    {% endif %}
+                  </div>
+                  
+                  <!-- Themen-Info -->
+                  <div>
+                    <h3 class="font-medium leading-snug mb-1 {% if thread.is_locked %}opacity-70{% endif %}">
+                      {{ thread.title }}
+                    </h3>
+                    <div class="flex items-center text-xs opacity-70 mt-1">
+                      <span><i class="fas fa-eye mr-1"></i> {{ thread.view_count }}</span>
+                      <span class="mx-2 block md:hidden">•</span>
+                      <span class="block md:hidden"><i class="fas fa-reply mr-1"></i> {{ thread_data.reply_count }}</span>
+                      <span class="mx-2">•</span>
+                      <span><i class="fas fa-clock mr-1"></i> {{ thread.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+                    </div>
+                  </div>
+                </div>
+              </div>
+              
+              <!-- Antworten -->
+              <div class="col-span-1 text-center hidden md:flex items-center justify-center">
+                <span class="px-2.5 py-1 rounded-full text-sm font-medium" 
+                     x-bind:class="darkMode 
+                     ? 'bg-indigo-900/40 text-indigo-300' 
+                     : 'bg-indigo-100 text-indigo-800'">
+                  {{ thread_data.reply_count }}
+                </span>
+              </div>
+              
+              <!-- Autor -->
+              <div class="col-span-2 text-center hidden md:flex items-center justify-center">
+                <div class="flex items-center">
+                  <div class="w-7 h-7 rounded-full flex items-center justify-center text-white text-xs font-medium overflow-hidden mr-2" 
+                       style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+                    {% if thread.author.avatar %}
+                      <img src="{{ thread.author.avatar }}" alt="{{ thread.author.username }}" class="w-full h-full object-cover">
+                    {% else %}
+                      {{ thread.author.username[0].upper() }}
+                    {% endif %}
+                  </div>
+                  <span class="text-sm truncate max-w-[80px]">{{ thread.author.username }}</span>
+                </div>
+              </div>
+              
+              <!-- Letzte Antwort -->
+              <div class="col-span-2 text-center hidden md:block text-sm">
+                {% if thread_data.latest_reply %}
+                  <div>{{ thread_data.latest_reply.created_at.strftime('%d.%m.%Y') }}</div>
+                  <div class="opacity-75 text-xs">{{ thread_data.latest_reply.created_at.strftime('%H:%M') }} Uhr</div>
+                {% else %}
+                  <span class="opacity-60">Keine Antworten</span>
+                {% endif %}
+              </div>
+            </div>
+          </a>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="p-8 text-center">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-comments"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Themen vorhanden</h3>
+        <p class="opacity-75 mb-4">In dieser Kategorie wurden noch keine Themen erstellt.</p>
+        <a href="{{ url_for('new_post', category_id=category.id) }}" 
+           class="inline-block px-5 py-2.5 rounded-lg transition-all duration-300"
+           x-bind:class="darkMode 
+           ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+           : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+          <i class="fas fa-plus-circle mr-2"></i>
+          Erstes Thema erstellen
+        </a>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Link zur Mindmap -->
+  <div class="rounded-xl p-5 mb-4 flex items-center"
+       x-bind:class="darkMode ? 'bg-purple-900/20 border border-purple-800/30' : 'bg-purple-50 border border-purple-100'">
+    <div class="text-3xl mr-4 opacity-80">
+      <i class="fas fa-diagram-project" style="color: {{ node.color_code }}"></i>
+    </div>
+    <div>
+      <h3 class="font-medium mb-1">Mindmap-Knotenpunkt: {{ node.name }}</h3>
+      <p class="text-sm opacity-75">In der Mindmap findest du weitere Informationen zu diesem Themenbereich.</p>
+    </div>
+    <div class="ml-auto">
+      <a href="{{ url_for('mindmap') }}" 
+         class="px-4 py-2 rounded-lg inline-block text-sm transition-all"
+         x-bind:class="darkMode 
+         ? 'bg-purple-800/60 hover:bg-purple-700/60 text-white' 
+         : 'bg-white hover:bg-purple-100 text-purple-800 border border-purple-200'">
+        Zur Mindmap
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf kategoriespezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/community/edit_post.html

@@ -0,0 +1,344 @@
+{% extends 'base.html' %}
+
+{% block title %}Beitrag bearbeiten{% endblock %}
+
+{% block extra_css %}
+<style>
+  .markdown-preview {
+    min-height: 200px;
+    max-height: 400px;
+    overflow-y: auto;
+    line-height: 1.6;
+  }
+  .markdown-preview p {
+    margin-bottom: 1rem;
+  }
+  .markdown-preview h1, .markdown-preview h2, .markdown-preview h3, 
+  .markdown-preview h4, .markdown-preview h5, .markdown-preview h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .markdown-preview h1 { font-size: 1.8rem; }
+  .markdown-preview h2 { font-size: 1.5rem; }
+  .markdown-preview h3 { font-size: 1.3rem; }
+  .markdown-preview h4 { font-size: 1.1rem; }
+  .markdown-preview ul, .markdown-preview ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .markdown-preview ul { list-style-type: disc; }
+  .markdown-preview ol { list-style-type: decimal; }
+  .markdown-preview pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .markdown-preview code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .markdown-preview pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .markdown-preview blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .dark .markdown-preview code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .markdown-preview blockquote {
+    border-color: rgba(255,255,255,0.2);
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=post.category_id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ post.category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    {% if post.parent_id %}
+    <a href="{{ url_for('forum_post', post_id=post.parent_id) }}" class="opacity-75 hover:opacity-100 transition-opacity truncate max-w-[200px]">
+      {{ post.parent.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    {% endif %}
+    <span class="font-medium">Beitrag bearbeiten</span>
+  </div>
+  
+  <!-- Formular-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">Beitrag bearbeiten</h1>
+    <p class="opacity-75">
+      {% if post.parent_id %}
+      Antwort auf <span class="font-medium">{{ post.parent.title }}</span>
+      {% else %}
+      in der Kategorie <span class="font-medium">{{ post.category.title }}</span>
+      {% endif %}
+    </p>
+  </div>
+  
+  <!-- Formular -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <i class="fas fa-edit mr-2"></i>
+      Beitrag bearbeiten
+    </div>
+    <div class="p-6">
+      <form action="{{ url_for('edit_post', post_id=post.id) }}" method="POST" x-data="{ 
+        title: '{{ post.title|safe }}', 
+        content: '{{ post.content|replace('\n', '\\n')|replace('\'', '\\\'')|safe }}',
+        showPreview: false,
+        previewHtml: '',
+        
+        updatePreview() {
+          // Verarbeite den Inhalt
+          if (this.content.trim() === '') {
+            this.previewHtml = '<div class=\'opacity-50 italic\'>Die Vorschau wird hier angezeigt...</div>';
+            return;
+          }
+          
+          // Verarbeite Markdown
+          let html = marked.parse(this.content);
+          
+          // Ersetze @Knotenname mit entsprechenden Links
+          html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class=\'node-mention\'><i class=\'fas fa-diagram-project fa-xs mr-1\'></i>$1</span>');
+          
+          this.previewHtml = html;
+        }
+      }">
+        <div class="mb-6">
+          <label for="title" class="block mb-2 font-medium">Titel</label>
+          <div class="rounded-lg overflow-hidden"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+            <input type="text" id="title" name="title" 
+                  class="w-full px-4 py-3" 
+                  x-bind:class="darkMode 
+                  ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                  : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                  x-model="title"
+                  required>
+          </div>
+        </div>
+        
+        <div class="mb-6">
+          <div class="flex justify-between items-center mb-2">
+            <label for="content" class="font-medium">Inhalt</label>
+            <div class="flex space-x-2">
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="showPreview = false"
+                     x-bind:disabled="!showPreview"
+                     x-bind:class="{'opacity-50': !showPreview}">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </button>
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="updatePreview(); showPreview = true"
+                     x-bind:disabled="showPreview"
+                     x-bind:class="{'opacity-50': showPreview}">
+                <i class="fas fa-eye mr-1"></i> Vorschau
+              </button>
+            </div>
+          </div>
+          
+          <!-- Editor -->
+          <div class="rounded-lg overflow-hidden mb-2"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'"
+               x-show="!showPreview">
+            <textarea id="content" name="content" rows="12" 
+                     class="w-full p-3 resize-y"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                     : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                     x-model="content"
+                     required></textarea>
+          </div>
+          
+          <!-- Preview -->
+          <div class="rounded-lg overflow-hidden mb-2 p-4 markdown-preview"
+               x-bind:class="darkMode 
+               ? 'border border-white/20 bg-gray-700/30' 
+               : 'border border-gray-300 bg-gray-50'"
+               x-show="showPreview"
+               x-html="previewHtml">
+          </div>
+          
+          <!-- Markdown-Hilfsmittel -->
+          <div class="mb-4" x-show="!showPreview">
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+        
+        <div class="flex justify-between items-center">
+          <a href="{{ url_for('forum_post', post_id=post.parent_id or post.id) }}" 
+             class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+             x-bind:class="darkMode 
+             ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+             : 'bg-gray-200 hover:bg-gray-300 text-gray-700'">
+            Abbrechen
+          </a>
+          <button type="submit" 
+                 class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                 x-bind:class="darkMode 
+                 ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                 : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+            <i class="fas fa-save mr-2"></i>
+            Änderungen speichern
+          </button>
+        </div>
+      </form>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown-Buttons für den Beitragseditor
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          
+          // Alpine.js Model aktualisieren
+          textarea.dispatchEvent(new Event('input'));
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Alpine.js Model aktualisieren
+        textarea.dispatchEvent(new Event('input'));
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/index.html

@@ -0,0 +1,125 @@
+{% extends 'base.html' %}
+
+{% block title %}Community Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .forum-category {
+    transition: all 0.3s ease;
+  }
+  .forum-category:hover {
+    transform: translateY(-2px);
+  }
+  .category-icon {
+    font-size: 1.5rem;
+    width: 2.5rem;
+    height: 2.5rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.75rem;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Seitenüberschrift -->
+  <div class="mb-8 text-center">
+    <h1 class="text-3xl font-bold mb-2 gradient-text">Community Forum</h1>
+    <p class="text-lg opacity-75">Diskutiere mit anderen Nutzern über die Hauptthemenbereiche der Mindmap</p>
+  </div>
+  
+  <!-- Forumskategorien -->
+  <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
+    {% if categories_data %}
+      {% for cat_data in categories_data %}
+        <a href="{{ url_for('forum_category', category_id=cat_data.category.id) }}" class="forum-category block">
+          <div class="rounded-xl p-5 h-full" 
+               x-bind:class="darkMode ? 'bg-gray-800/60 hover:bg-gray-800/80 border border-white/10' : 'bg-white hover:bg-gray-50 border border-gray-200 shadow-md'">
+            <div class="flex items-start">
+              <!-- Kategorie-Icon -->
+              <div class="category-icon mr-4 text-white" 
+                   style="background-color: {{ cat_data.category.node.color_code or '#6d28d9' }}">
+                <i class="fas {{ cat_data.category.node.icon or 'fa-folder' }}"></i>
+              </div>
+              
+              <!-- Kategorie-Info -->
+              <div class="flex-grow">
+                <h3 class="text-xl font-semibold mb-2">{{ cat_data.category.title }}</h3>
+                <p class="opacity-75 text-sm mb-3">{{ cat_data.category.description }}</p>
+                
+                <!-- Statistik -->
+                <div class="flex flex-wrap gap-4 text-sm opacity-80">
+                  <div class="flex items-center">
+                    <i class="fas fa-comment-alt mr-2"></i>
+                    <span>{{ cat_data.total_posts }} Themen</span>
+                  </div>
+                  <div class="flex items-center">
+                    <i class="fas fa-reply mr-2"></i>
+                    <span>{{ cat_data.total_replies }} Antworten</span>
+                  </div>
+                  {% if cat_data.latest_post %}
+                  <div class="flex items-center">
+                    <i class="fas fa-clock mr-2"></i>
+                    <span>Neuster Beitrag: {{ cat_data.latest_post.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+                  </div>
+                  {% endif %}
+                </div>
+              </div>
+              
+              <!-- Pfeil-Icon -->
+              <div class="ml-2">
+                <i class="fas fa-chevron-right opacity-50"></i>
+              </div>
+            </div>
+          </div>
+        </a>
+      {% endfor %}
+    {% else %}
+      <div class="col-span-2 text-center py-8">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-exclamation-circle"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Forum-Kategorien gefunden</h3>
+        <p class="opacity-75">Es sind derzeit keine Kategorien für Diskussionen verfügbar.</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Hinweis zur Nutzung -->
+  <div class="rounded-xl p-6 text-center mb-8" 
+       x-bind:class="darkMode ? 'bg-indigo-900/30 border border-indigo-700/30' : 'bg-indigo-50 border border-indigo-100'">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lightbulb mr-2 text-yellow-500"></i>
+      So funktioniert das Forum
+    </h3>
+    <p class="mb-4">Das Community-Forum ist nach den Hauptknotenpunkten der Systades-Mindmap strukturiert. 
+      In deinen Beiträgen kannst du Knotenpunkte mit <code>@Knotenname</code> verlinken.</p>
+    <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-users text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Fachliche Diskussionen</h4>
+        <p class="text-sm opacity-75">Tausche dich mit anderen zu spezifischen Themen aus</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-link text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Wissensvernetzung</h4>
+        <p class="text-sm opacity-75">Verknüpfe Inhalte durch Knotenreferenzen</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-markdown text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Markdown Support</h4>
+        <p class="text-sm opacity-75">Formatiere deine Beiträge mit Markdown</p>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf forumspezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/community/new_post.html

@@ -0,0 +1,355 @@
+{% extends 'base.html' %}
+
+{% block title %}Neues Thema - {{ category.title }}{% endblock %}
+
+{% block extra_css %}
+<style>
+  .markdown-preview {
+    min-height: 200px;
+    max-height: 400px;
+    overflow-y: auto;
+    line-height: 1.6;
+  }
+  .markdown-preview p {
+    margin-bottom: 1rem;
+  }
+  .markdown-preview h1, .markdown-preview h2, .markdown-preview h3, 
+  .markdown-preview h4, .markdown-preview h5, .markdown-preview h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .markdown-preview h1 { font-size: 1.8rem; }
+  .markdown-preview h2 { font-size: 1.5rem; }
+  .markdown-preview h3 { font-size: 1.3rem; }
+  .markdown-preview h4 { font-size: 1.1rem; }
+  .markdown-preview ul, .markdown-preview ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .markdown-preview ul { list-style-type: disc; }
+  .markdown-preview ol { list-style-type: decimal; }
+  .markdown-preview pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .markdown-preview code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .markdown-preview pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .markdown-preview blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .dark .markdown-preview code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .markdown-preview blockquote {
+    border-color: rgba(255,255,255,0.2);
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=category.id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium">Neues Thema</span>
+  </div>
+  
+  <!-- Formular-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">Neues Thema erstellen</h1>
+    <p class="opacity-75">in der Kategorie <span class="font-medium">{{ category.title }}</span></p>
+  </div>
+  
+  <!-- Formular -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <i class="fas fa-plus-circle mr-2"></i>
+      Neues Thema
+    </div>
+    <div class="p-6">
+      <form action="{{ url_for('new_post', category_id=category.id) }}" method="POST" x-data="{ 
+        title: '', 
+        content: '',
+        showPreview: false,
+        previewHtml: '',
+        
+        updatePreview() {
+          // Verarbeite den Inhalt
+          if (this.content.trim() === '') {
+            this.previewHtml = '<div class=\'opacity-50 italic\'>Die Vorschau wird hier angezeigt...</div>';
+            return;
+          }
+          
+          // Verarbeite Markdown
+          let html = marked.parse(this.content);
+          
+          // Ersetze @Knotenname mit entsprechenden Links
+          html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class=\'node-mention\'><i class=\'fas fa-diagram-project fa-xs mr-1\'></i>$1</span>');
+          
+          this.previewHtml = html;
+        }
+      }">
+        <div class="mb-6">
+          <label for="title" class="block mb-2 font-medium">Titel des Themas</label>
+          <div class="rounded-lg overflow-hidden"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+            <input type="text" id="title" name="title" 
+                  class="w-full px-4 py-3" 
+                  x-bind:class="darkMode 
+                  ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                  : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                  placeholder="Ein prägnanter Titel für dein Thema"
+                  x-model="title"
+                  required>
+          </div>
+        </div>
+        
+        <div class="mb-6">
+          <div class="flex justify-between items-center mb-2">
+            <label for="content" class="font-medium">Inhalt</label>
+            <div class="flex space-x-2">
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="showPreview = false"
+                     x-bind:disabled="!showPreview"
+                     x-bind:class="{'opacity-50': !showPreview}">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </button>
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="updatePreview(); showPreview = true"
+                     x-bind:disabled="showPreview"
+                     x-bind:class="{'opacity-50': showPreview}">
+                <i class="fas fa-eye mr-1"></i> Vorschau
+              </button>
+            </div>
+          </div>
+          
+          <!-- Editor -->
+          <div class="rounded-lg overflow-hidden mb-2"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'"
+               x-show="!showPreview">
+            <textarea id="content" name="content" rows="12" 
+                     class="w-full p-3 resize-y"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                     : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                     placeholder="Schreibe deinen Beitrag hier (unterstützt Markdown und @Knotenname-Erwähnungen)..."
+                     x-model="content"
+                     required></textarea>
+          </div>
+          
+          <!-- Preview -->
+          <div class="rounded-lg overflow-hidden mb-2 p-4 markdown-preview"
+               x-bind:class="darkMode 
+               ? 'border border-white/20 bg-gray-700/30' 
+               : 'border border-gray-300 bg-gray-50'"
+               x-show="showPreview"
+               x-html="previewHtml">
+          </div>
+          
+          <!-- Markdown-Hilfsmittel -->
+          <div class="mb-4" x-show="!showPreview">
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+        
+        <div class="flex justify-between items-center">
+          <a href="{{ url_for('forum_category', category_id=category.id) }}" 
+             class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+             x-bind:class="darkMode 
+             ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+             : 'bg-gray-200 hover:bg-gray-300 text-gray-700'">
+            Abbrechen
+          </a>
+          <button type="submit" 
+                 class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                 x-bind:class="darkMode 
+                 ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                 : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+            <i class="fas fa-paper-plane mr-2"></i>
+            Thema erstellen
+          </button>
+        </div>
+      </form>
+    </div>
+  </div>
+  
+  <!-- Link zur Mindmap -->
+  <div class="rounded-xl p-5 mb-4 flex items-center"
+       x-bind:class="darkMode ? 'bg-purple-900/20 border border-purple-800/30' : 'bg-purple-50 border border-purple-100'">
+    <div class="text-3xl mr-4 opacity-80">
+      <i class="fas fa-diagram-project" style="color: {{ category.node.color_code }}"></i>
+    </div>
+    <div>
+      <h3 class="font-medium mb-1">Mindmap-Knotenpunkt: {{ category.node.name }}</h3>
+      <p class="text-sm opacity-75">Dieser Diskussionsbereich ist mit dem Mindmap-Knotenpunkt "{{ category.node.name }}" verknüpft.</p>
+    </div>
+    <div class="ml-auto">
+      <a href="{{ url_for('mindmap') }}" 
+         class="px-4 py-2 rounded-lg inline-block text-sm transition-all"
+         x-bind:class="darkMode 
+         ? 'bg-purple-800/60 hover:bg-purple-700/60 text-white' 
+         : 'bg-white hover:bg-purple-100 text-purple-800 border border-purple-200'">
+        Zur Mindmap
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown-Buttons für den Beitragseditor
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          
+          // Alpine.js Model aktualisieren
+          textarea.dispatchEvent(new Event('input'));
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Alpine.js Model aktualisieren
+        textarea.dispatchEvent(new Event('input'));
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/post.html

@@ -0,0 +1,491 @@
+{% extends 'base.html' %}
+
+{% block title %}{{ post.title }} - Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .post-content {
+    line-height: 1.7;
+  }
+  .post-content p {
+    margin-bottom: 1rem;
+  }
+  .post-content h1, .post-content h2, .post-content h3, 
+  .post-content h4, .post-content h5, .post-content h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .post-content h1 { font-size: 1.8rem; }
+  .post-content h2 { font-size: 1.5rem; }
+  .post-content h3 { font-size: 1.3rem; }
+  .post-content h4 { font-size: 1.1rem; }
+  .post-content ul, .post-content ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .post-content ul { list-style-type: disc; }
+  .post-content ol { list-style-type: decimal; }
+  .post-content pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .post-content code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .post-content pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .post-content blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .post-content img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 0.5rem;
+    margin: 1rem 0;
+  }
+  .post-content table {
+    width: 100%;
+    border-collapse: collapse;
+    margin: 1rem 0;
+  }
+  .post-content th, .post-content td {
+    padding: 0.5rem;
+    border: 1px solid;
+    border-color: rgba(0,0,0,0.1);
+  }
+  .post-content th {
+    background-color: rgba(0,0,0,0.05);
+  }
+  .post-content a {
+    color: #6d28d9;
+    text-decoration: none;
+  }
+  .post-content a:hover {
+    text-decoration: underline;
+  }
+  .dark .post-content code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .post-content th, .dark .post-content td {
+    border-color: rgba(255,255,255,0.1);
+  }
+  .dark .post-content th {
+    background-color: rgba(255,255,255,0.05);
+  }
+  .dark .post-content a {
+    color: #a78bfa;
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=category.id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium truncate max-w-[300px]">{{ post.title }}</span>
+  </div>
+  
+  <!-- Beitrags-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">{{ post.title }}</h1>
+    <div class="flex flex-wrap items-center gap-3 text-sm opacity-75">
+      <span><i class="fas fa-calendar-alt mr-1"></i> {{ post.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+      <span><i class="fas fa-eye mr-1"></i> {{ post.view_count }} Aufrufe</span>
+      <span><i class="fas fa-reply mr-1"></i> {{ replies|length }} Antworten</span>
+      
+      {% if post.is_pinned or post.is_locked %}
+      <div class="flex gap-2 ml-2">
+        {% if post.is_pinned %}
+        <span class="px-2 py-0.5 text-xs rounded-full"
+              x-bind:class="darkMode ? 'bg-yellow-700/50 text-yellow-300' : 'bg-yellow-100 text-yellow-800'">
+          <i class="fas fa-thumbtack mr-1"></i> Angepinnt
+        </span>
+        {% endif %}
+        {% if post.is_locked %}
+        <span class="px-2 py-0.5 text-xs rounded-full"
+              x-bind:class="darkMode ? 'bg-red-700/50 text-red-300' : 'bg-red-100 text-red-800'">
+          <i class="fas fa-lock mr-1"></i> Gesperrt
+        </span>
+        {% endif %}
+      </div>
+      {% endif %}
+    </div>
+  </div>
+  
+  <!-- Hauptbeitrag -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200 shadow-sm'">
+    <!-- Beitrags-Header -->
+    <div class="p-4 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <div class="flex items-center justify-between">
+        <div class="flex items-center">
+          <!-- Autor-Avatar -->
+          <div class="w-10 h-10 rounded-full flex items-center justify-center text-white font-medium text-sm overflow-hidden mr-3" 
+               style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+            {% if post.author.avatar %}
+              <img src="{{ post.author.avatar }}" alt="{{ post.author.username }}" class="w-full h-full object-cover">
+            {% else %}
+              {{ post.author.username[0].upper() }}
+            {% endif %}
+          </div>
+          
+          <!-- Autor-Info -->
+          <div>
+            <div class="font-medium">{{ post.author.username }}</div>
+            <div class="text-xs opacity-70">Erstellt am {{ post.created_at.strftime('%d.%m.%Y, %H:%M') }}</div>
+          </div>
+        </div>
+        
+        <!-- Aktionen -->
+        <div class="flex items-center space-x-2">
+          {% if current_user.id == post.user_id or current_user.role == 'admin' %}
+            <a href="{{ url_for('edit_post', post_id=post.id) }}" 
+               class="p-2 rounded transition-colors"
+               x-bind:class="darkMode 
+               ? 'hover:bg-gray-700/50 text-gray-300' 
+               : 'hover:bg-gray-100 text-gray-600'">
+              <i class="fas fa-edit"></i>
+            </a>
+            <form action="{{ url_for('delete_post', post_id=post.id) }}" method="POST" class="inline" onsubmit="return confirm('Möchtest du diesen Beitrag wirklich löschen?');">
+              <button type="submit" 
+                     class="p-2 rounded transition-colors"
+                     x-bind:class="darkMode 
+                     ? 'hover:bg-red-800/50 text-red-300' 
+                     : 'hover:bg-red-100 text-red-600'">
+                <i class="fas fa-trash-alt"></i>
+              </button>
+            </form>
+          {% endif %}
+          
+          <!-- Moderation-Optionen -->
+          {% if current_user.role in ['admin', 'moderator'] %}
+            <div class="ml-2 border-l" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'"></div>
+            <form action="{{ url_for('toggle_pin_post', post_id=post.id) }}" method="POST" class="inline">
+              <button type="submit" 
+                    class="p-2 rounded transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-yellow-800/50 text-yellow-300' 
+                    : 'hover:bg-yellow-100 text-yellow-600'"
+                    title="{% if post.is_pinned %}Nicht mehr anpinnen{% else %}Anpinnen{% endif %}">
+                <i class="fas fa-thumbtack"></i>
+              </button>
+            </form>
+            <form action="{{ url_for('toggle_lock_post', post_id=post.id) }}" method="POST" class="inline">
+              <button type="submit" 
+                    class="p-2 rounded transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-blue-800/50 text-blue-300' 
+                    : 'hover:bg-blue-100 text-blue-600'"
+                    title="{% if post.is_locked %}Entsperren{% else %}Sperren{% endif %}">
+                <i class="fas {% if post.is_locked %}fa-unlock{% else %}fa-lock{% endif %}"></i>
+              </button>
+            </form>
+          {% endif %}
+        </div>
+      </div>
+    </div>
+    
+    <!-- Beitrags-Inhalt -->
+    <div class="p-6">
+      <div class="post-content markdown-content" id="main-post-content">
+        {{ post.content|safe }}
+      </div>
+      
+      {% if post.updated_at and post.updated_at != post.created_at %}
+        <div class="mt-6 pt-4 text-xs opacity-60 border-t" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+          <i class="fas fa-edit mr-1"></i> Zuletzt bearbeitet: {{ post.updated_at.strftime('%d.%m.%Y, %H:%M') }}
+        </div>
+      {% endif %}
+    </div>
+  </div>
+  
+  <!-- Antworten-Bereich -->
+  <div class="mb-8">
+    <h2 class="text-xl font-semibold mb-4">
+      <i class="fas fa-reply mr-2 opacity-60"></i>
+      {{ replies|length }} Antworten
+    </h2>
+    
+    <!-- Antworten-Liste -->
+    {% if replies %}
+      {% for reply in replies %}
+        <div class="mb-5 rounded-xl overflow-hidden"
+            x-bind:class="darkMode ? 'bg-gray-800/40 border border-white/10' : 'bg-white border border-gray-200'">
+          <!-- Antwort-Header -->
+          <div class="p-3 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+            <div class="flex items-center justify-between">
+              <div class="flex items-center">
+                <!-- Autor-Avatar -->
+                <div class="w-8 h-8 rounded-full flex items-center justify-center text-white font-medium text-xs overflow-hidden mr-3" 
+                    style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+                  {% if reply.author.avatar %}
+                    <img src="{{ reply.author.avatar }}" alt="{{ reply.author.username }}" class="w-full h-full object-cover">
+                  {% else %}
+                    {{ reply.author.username[0].upper() }}
+                  {% endif %}
+                </div>
+                
+                <!-- Autor-Info -->
+                <div>
+                  <div class="font-medium text-sm">{{ reply.author.username }}</div>
+                  <div class="text-xs opacity-70">{{ reply.created_at.strftime('%d.%m.%Y, %H:%M') }}</div>
+                </div>
+              </div>
+              
+              <!-- Aktionen -->
+              <div class="flex items-center space-x-1">
+                {% if current_user.id == reply.user_id or current_user.role == 'admin' %}
+                  <a href="{{ url_for('edit_post', post_id=reply.id) }}" 
+                    class="p-1.5 rounded text-sm transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-gray-700/50 text-gray-300' 
+                    : 'hover:bg-gray-100 text-gray-600'">
+                    <i class="fas fa-edit"></i>
+                  </a>
+                  <form action="{{ url_for('delete_post', post_id=reply.id) }}" method="POST" class="inline" onsubmit="return confirm('Möchtest du diese Antwort wirklich löschen?');">
+                    <button type="submit" 
+                          class="p-1.5 rounded text-sm transition-colors"
+                          x-bind:class="darkMode 
+                          ? 'hover:bg-red-800/50 text-red-300' 
+                          : 'hover:bg-red-100 text-red-600'">
+                      <i class="fas fa-trash-alt"></i>
+                    </button>
+                  </form>
+                {% endif %}
+              </div>
+            </div>
+          </div>
+          
+          <!-- Antwort-Inhalt -->
+          <div class="p-5">
+            <div class="post-content markdown-content reply-content" id="reply-content-{{ reply.id }}">
+              {{ reply.content|safe }}
+            </div>
+            
+            {% if reply.updated_at and reply.updated_at != reply.created_at %}
+              <div class="mt-4 pt-3 text-xs opacity-60 border-t" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+                <i class="fas fa-edit mr-1"></i> Zuletzt bearbeitet: {{ reply.updated_at.strftime('%d.%m.%Y, %H:%M') }}
+              </div>
+            {% endif %}
+          </div>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="rounded-xl p-6 text-center"
+           x-bind:class="darkMode ? 'bg-gray-800/40 border border-white/10' : 'bg-white border border-gray-200'">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-comments"></i></div>
+        <h3 class="text-lg font-semibold mb-2">Noch keine Antworten</h3>
+        <p class="opacity-75">Sei der Erste, der auf diesen Beitrag antwortet!</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Antwort-Formular -->
+  {% if not post.is_locked %}
+    <div class="mb-8 rounded-xl overflow-hidden"
+         x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+      <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+        <i class="fas fa-reply mr-2"></i>
+        Antworten
+      </div>
+      <div class="p-6">
+        <form action="{{ url_for('reply_to_post', post_id=post.id) }}" method="POST">
+          <div class="mb-4">
+            <label for="content" class="block mb-2 font-medium">Deine Antwort</label>
+            <div class="mb-2 rounded-lg overflow-hidden"
+                 x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+              <textarea id="content" name="content" rows="6" 
+                       class="w-full p-3 resize-y"
+                       x-bind:class="darkMode 
+                       ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                       : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                       placeholder="Schreibe deine Antwort hier (unterstützt Markdown und @Knotenname-Erwähnungen)..."
+                      required></textarea>
+            </div>
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+          <div>
+            <button type="submit" 
+                   class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                   x-bind:class="darkMode 
+                   ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                   : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+              <i class="fas fa-paper-plane mr-2"></i>
+              Antwort senden
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  {% else %}
+    <div class="rounded-xl p-5 text-center mb-6"
+         x-bind:class="darkMode ? 'bg-red-900/20 border border-red-800/30' : 'bg-red-50 border border-red-100'">
+      <i class="fas fa-lock mr-2 text-red-500"></i>
+      <span>Dieser Beitrag ist geschlossen. Es können keine neuen Antworten mehr verfasst werden.</span>
+    </div>
+  {% endif %}
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown und Knotenerwähnungen verarbeiten
+    const processContent = (content) => {
+      // Verarbeite Markdown mit marked.js
+      let html = marked.parse(content);
+      
+      // Ersetze @Knotenname mit entsprechenden Links
+      html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class="node-mention"><i class="fas fa-diagram-project fa-xs mr-1"></i>$1</span>');
+      
+      return html;
+    };
+    
+    // Markdown-Inhalt für Hauptbeitrag rendern
+    const mainPostContent = document.getElementById('main-post-content');
+    if (mainPostContent) {
+      mainPostContent.innerHTML = processContent(mainPostContent.textContent.trim());
+    }
+    
+    // Markdown-Inhalt für Antworten rendern
+    document.querySelectorAll('.reply-content').forEach(reply => {
+      reply.innerHTML = processContent(reply.textContent.trim());
+    });
+    
+    // Markdown-Buttons für das Antwortformular
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/preview.html

@@ -0,0 +1,137 @@
+{% extends 'base.html' %}
+
+{% block title %}Community Forum Vorschau{% endblock %}
+
+{% block extra_css %}
+<style>
+  .forum-category {
+    transition: all 0.3s ease;
+  }
+  .forum-category:hover {
+    transform: translateY(-2px);
+  }
+  .category-icon {
+    font-size: 1.5rem;
+    width: 2.5rem;
+    height: 2.5rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.75rem;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Seitenüberschrift -->
+  <div class="mb-8 text-center">
+    <h1 class="text-3xl font-bold mb-2 gradient-text">Community Forum</h1>
+    <p class="text-lg opacity-75">Diskutiere mit anderen Nutzern über die Hauptthemenbereiche der Mindmap</p>
+  </div>
+  
+  <!-- Login-Aufforderung -->
+  <div class="rounded-xl p-6 text-center mb-8 bg-indigo-50 dark:bg-indigo-900/30 border border-indigo-100 dark:border-indigo-700/30">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lock mr-2 text-indigo-500"></i>
+      Anmeldung erforderlich
+    </h3>
+    <p class="mb-4">Um am Community-Forum teilzunehmen und alle Funktionen nutzen zu können, musst du dich anmelden oder registrieren.</p>
+    <div class="flex justify-center gap-4 mt-4">
+      <a href="{{ url_for('login', next=url_for('forum')) }}" class="px-4 py-2 bg-indigo-500 hover:bg-indigo-600 text-white rounded-lg transition-colors">
+        <i class="fas fa-sign-in-alt mr-2"></i>Anmelden
+      </a>
+      <a href="{{ url_for('register') }}" class="px-4 py-2 bg-purple-500 hover:bg-purple-600 text-white rounded-lg transition-colors">
+        <i class="fas fa-user-plus mr-2"></i>Registrieren
+      </a>
+    </div>
+  </div>
+  
+  <!-- Forumskategorien Vorschau -->
+  <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
+    {% if categories_data %}
+      {% for cat_data in categories_data %}
+        <div class="forum-category block">
+          <div class="rounded-xl p-5 h-full" 
+               x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200 shadow-md'">
+            <div class="flex items-start">
+              <!-- Kategorie-Icon -->
+              <div class="category-icon mr-4 text-white" 
+                   style="background-color: {{ cat_data.category.node.color_code or '#6d28d9' }}">
+                <i class="fas {{ cat_data.category.node.icon or 'fa-folder' }}"></i>
+              </div>
+              
+              <!-- Kategorie-Info -->
+              <div class="flex-grow">
+                <h3 class="text-xl font-semibold mb-2">{{ cat_data.category.title }}</h3>
+                <p class="opacity-75 text-sm mb-3">{{ cat_data.category.description }}</p>
+                
+                <!-- Statistik -->
+                <div class="flex flex-wrap gap-4 text-sm opacity-80">
+                  <div class="flex items-center">
+                    <i class="fas fa-comment-alt mr-2"></i>
+                    <span>{{ cat_data.total_posts }} Themen</span>
+                  </div>
+                  <div class="flex items-center">
+                    <i class="fas fa-reply mr-2"></i>
+                    <span>{{ cat_data.total_replies }} Antworten</span>
+                  </div>
+                </div>
+              </div>
+              
+              <!-- Pfeil-Icon -->
+              <div class="ml-2">
+                <i class="fas fa-lock opacity-50"></i>
+              </div>
+            </div>
+          </div>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="col-span-2 text-center py-8">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-exclamation-circle"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Forum-Kategorien gefunden</h3>
+        <p class="opacity-75">Es sind derzeit keine Kategorien für Diskussionen verfügbar.</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Hinweis zur Nutzung -->
+  <div class="rounded-xl p-6 text-center mb-8" 
+       x-bind:class="darkMode ? 'bg-indigo-900/30 border border-indigo-700/30' : 'bg-indigo-50 border border-indigo-100'">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lightbulb mr-2 text-yellow-500"></i>
+      So funktioniert das Forum
+    </h3>
+    <p class="mb-4">Das Community-Forum ist nach den Hauptknotenpunkten der Systades-Mindmap strukturiert. 
+      In deinen Beiträgen kannst du Knotenpunkte mit <code>@Knotenname</code> verlinken.</p>
+    
+    <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-users text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Fachliche Diskussionen</h4>
+        <p class="text-sm opacity-75">Tausche dich mit anderen zu spezifischen Themen aus</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-link text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Wissensvernetzung</h4>
+        <p class="text-sm opacity-75">Verknüpfe Inhalte durch Knotenreferenzen</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-markdown text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Markdown Support</h4>
+        <p class="text-sm opacity-75">Formatiere deine Beiträge mit Markdown</p>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf forumspezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/index.html

@@ -39,6 +39,35 @@
     animation: textReveal 1s cubic-bezier(0.77, 0, 0.18, 1) forwards;
   }
   
+  /* Marker-Animation für den Text */
+  @keyframes markerAnimation {
+    0% { width: 0; opacity: 0; }
+    20% { width: 100%; opacity: 0.7; }
+    80% { width: 100%; opacity: 0.7; }
+    100% { width: 0; opacity: 0; }
+  }
+  
+  .marker-animation {
+    position: relative;
+  }
+  
+  .marker-animation::after {
+    content: '';
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    height: 6px;
+    width: 0;
+    background: linear-gradient(to right, rgba(109, 40, 217, 0.3), rgba(139, 92, 246, 0.6), rgba(109, 40, 217, 0.3));
+    border-radius: 3px;
+    opacity: 0;
+    animation: markerAnimation 2.5s ease-in-out forwards;
+  }
+  
+  .marker-animation-delay::after {
+    animation-delay: 1.5s;
+  }
+  
   .delay-1 { animation-delay: 0.2s; }
   .delay-2 { animation-delay: 0.4s; }
   .delay-3 { animation-delay: 0.6s; }
@@ -71,16 +100,20 @@
   
   /* Chat section styles */
   .embedded-chat {
-    height: 350px;
+    height: 500px;
     border-radius: 1rem;
     overflow: hidden;
     transition: all 0.3s ease;
     border: 1px solid;
+    display: flex;
+    flex-direction: column;
+    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 5px 10px -5px rgba(0, 0, 0, 0.05);
   }
   
   .dark .embedded-chat {
     background-color: rgba(17, 24, 39, 0.7);
     border-color: rgba(109, 40, 217, 0.2);
+    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 5px 10px -5px rgba(0, 0, 0, 0.2);
   }
   
   .embedded-chat {
@@ -89,9 +122,118 @@
   }
   
   #embedded-chat-messages {
-    height: 250px;
+    flex: 1;
     overflow-y: auto;
+    padding: 1.25rem;
+    min-height: 320px;
+  }
+  
+  .chat-input-container {
+    padding: 1.25rem;
+    border-top: 1px solid;
+    background-color: rgba(255, 255, 255, 0.3);
+  }
+  
+  .dark .chat-input-container {
+    background-color: rgba(17, 24, 39, 0.6);
+    border-color: rgba(75, 85, 99, 0.4);
+  }
+  
+  .mystical-input {
+    background-color: rgba(255, 255, 255, 0.8);
+    border: 1px solid rgba(209, 213, 219, 0.5);
+    color: #4B5563;
+    padding: 0.75rem 1rem;
+    border-radius: 0.5rem;
+    outline: none;
+    transition: all 0.3s ease;
+    width: 100%;
+    font-size: 1rem;
+  }
+  
+  .dark .mystical-input {
+    background-color: rgba(31, 41, 55, 0.7);
+    border-color: rgba(75, 85, 99, 0.4);
+    color: #E5E7EB;
+  }
+  
+  .mystical-input:focus {
+    border-color: rgba(139, 92, 246, 0.5);
+    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
+  }
+  
+  .dark .mystical-input:focus {
+    border-color: rgba(139, 92, 246, 0.5);
+    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
+  }
+  
+  /* Verbesserte Lesbarkeit für Chat-Nachrichten */
+  .chat-message {
+    margin-bottom: 1.25rem;
+  }
+  
+  .chat-bubble {
     padding: 1rem;
+    border-radius: 0.75rem;
+    max-width: 85%;
+    font-size: 1rem;
+    line-height: 1.5;
+  }
+  
+  .assistant-bubble {
+    background-color: rgba(243, 244, 246, 0.95);
+    color: #374151;
+  }
+  
+  .dark .assistant-bubble {
+    background-color: rgba(31, 41, 55, 0.95);
+    color: #E5E7EB;
+  }
+  
+  .user-bubble {
+    background-color: rgba(139, 92, 246, 0.15);
+    color: #4B5563;
+  }
+  
+  .dark .user-bubble {
+    background-color: rgba(124, 58, 237, 0.3);
+    color: #E5E7EB;
+  }
+  
+  /* Beispiel-Buttons verbessert */
+  .quick-query-container {
+    margin-top: 0.75rem;
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+    align-items: center;
+  }
+  
+  .quick-query-btn {
+    font-size: 0.8rem;
+    padding: 0.4rem 0.75rem;
+    border-radius: 2rem;
+    background-color: rgba(243, 244, 246, 0.8);
+    color: #4B5563;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    white-space: nowrap;
+    border: 1px solid rgba(209, 213, 219, 0.5);
+  }
+  
+  .dark .quick-query-btn {
+    background-color: rgba(55, 65, 81, 0.8);
+    color: #E5E7EB;
+    border-color: rgba(75, 85, 99, 0.4);
+  }
+  
+  .quick-query-btn:hover {
+    background-color: rgba(229, 231, 235, 0.9);
+    transform: translateY(-1px);
+  }
+  
+  .dark .quick-query-btn:hover {
+    background-color: rgba(75, 85, 99, 0.9);
   }
   
   /* Chat typing indicator */
@@ -131,16 +273,9 @@
   <div class="max-w-screen-xl mx-auto px-4 sm:px-6 lg:px-8 relative z-10">
     <div class="text-center mb-16">
       <h1 class="hero-heading mb-8 text-gray-900 dark:text-white">
-        <div class="overflow-hidden">
-          <span class="gradient-text inline-block text-reveal">Wissen</span>
-        </div>
-        <div class="overflow-hidden mt-2">
-          <span class="inline-block text-reveal delay-1">neu</span>
-        </div>
-        <div class="mt-2 relative overflow-hidden">
-          <span class="relative inline-block text-reveal delay-2">vernetzen
-            <div class="absolute -bottom-2 left-0 right-0 h-1 bg-gradient-to-r from-purple-500/0 via-purple-500/70 to-purple-500/0 rounded-full"></div>
-          </span>
+        <div class="overflow-hidden flex justify-center gap-6">
+          <span class="relative inline-block text-reveal marker-animation">Wissen.</span>
+          <span class="relative inline-block text-reveal delay-1 marker-animation marker-animation-delay">Vernetzen.</span>
         </div>
       </h1>
       <div class="overflow-hidden">
@@ -179,6 +314,12 @@
         <div class="text-center">
           <div class="text-3xl font-bold gradient-text mb-2 animate-float">Systades</div>
           <div class="text-lg text-gray-700 dark:text-gray-300">WISSEN VERNETZEN</div>
+          <!-- Animierte Pfeilspitze -->
+          <div class="mt-6 flex justify-center">
+            <svg width="20" height="12" viewBox="0 0 20 12" fill="none" xmlns="http://www.w3.org/2000/svg" class="text-white animate-bounce-slow">
+              <path d="M10 12L0 2L2 0L10 8L18 0L20 2L10 12Z" fill="currentColor" fill-opacity="0.7"/>
+            </svg>
+          </div>
         </div>
       </div>
     </div>
@@ -271,14 +412,14 @@
         </div>
         
         <!-- Chat Messages -->
-        <div id="embedded-chat-messages" class="border-b border-gray-200 dark:border-gray-700">
+        <div id="embedded-chat-messages" class="border-b-0">
           <!-- Assistant Message -->
-          <div class="mb-4 flex">
-            <div class="w-8 h-8 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-2 flex-shrink-0">
+          <div class="chat-message flex">
+            <div class="w-9 h-9 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-3 flex-shrink-0">
               <i class="fa-solid fa-robot text-sm"></i>
             </div>
-            <div class="bg-gray-100 dark:bg-gray-800 rounded-lg p-3 max-w-[80%]">
-              <div class="text-gray-700 dark:text-gray-300 markdown-content">
+            <div class="chat-bubble assistant-bubble">
+              <div class="markdown-content">
                 <p>Hallo! Ich bin dein Systades-Assistent. Wie kann ich dir heute helfen?</p>
                 <p>Du kannst mir Fragen zu:</p>
                 <ul>
@@ -292,24 +433,24 @@
           </div>
           
           <!-- User Message -->
-          <div class="mb-4 flex justify-end">
-            <div class="bg-purple-100 dark:bg-purple-900/30 rounded-lg p-3 max-w-[80%]">
-              <p class="text-gray-800 dark:text-gray-200">
+          <div class="chat-message flex justify-end">
+            <div class="chat-bubble user-bubble">
+              <p>
                 Kann ich mit deiner Hilfe eine Mindmap zum Thema Künstliche Intelligenz erstellen?
               </p>
             </div>
-            <div class="w-8 h-8 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-gray-700 dark:text-gray-300 ml-2 flex-shrink-0">
+            <div class="w-9 h-9 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-gray-700 dark:text-gray-300 ml-3 flex-shrink-0">
               <i class="fa-solid fa-user text-sm"></i>
             </div>
           </div>
           
           <!-- Assistant Response -->
-          <div class="mb-4 flex" id="demo-ai-response">
-            <div class="w-8 h-8 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-2 flex-shrink-0">
+          <div class="chat-message flex" id="demo-ai-response">
+            <div class="w-9 h-9 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-3 flex-shrink-0">
               <i class="fa-solid fa-robot text-sm"></i>
             </div>
-            <div class="bg-gray-100 dark:bg-gray-800 rounded-lg p-3 max-w-[80%]">
-              <div class="text-gray-700 dark:text-gray-300 markdown-content">
+            <div class="chat-bubble assistant-bubble">
+              <div class="markdown-content">
                 <p>Ja, natürlich! Ich kann dir dabei helfen, eine Mindmap zum Thema <strong>Künstliche Intelligenz</strong> zu erstellen.</p>
                 <p>Du kannst wie folgt vorgehen:</p>
                 <ol>
@@ -325,19 +466,19 @@
         </div>
         
         <!-- Chat Input -->
-        <div class="p-4">
+        <div class="chat-input-container">
           <div class="flex">
             <input type="text" placeholder="Stelle eine Frage..." class="mystical-input flex-grow" disabled>
-            <button class="ml-2 bg-gradient-to-r from-purple-600 to-indigo-600 text-white p-2 rounded-lg disabled:opacity-50" disabled>
+            <button class="ml-3 bg-gradient-to-r from-purple-600 to-indigo-600 text-white px-3 py-2 rounded-lg disabled:opacity-50 flex-shrink-0 hover:shadow-md transition-all duration-200" disabled>
               <i class="fa-solid fa-paper-plane"></i>
             </button>
           </div>
           <!-- Quick Queries -->
-          <div class="mt-3 flex flex-wrap gap-2">
-            <span class="text-xs text-gray-500 dark:text-gray-400 mr-1">Beispiele:</span>
-            <button data-question="Was sind die wichtigsten Grundlagen der Künstlichen Intelligenz?" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">KI-Grundlagen</button>
-            <button data-question="Wie kann ich eine Mindmap zum Thema Neuronale Netzwerke erstellen?" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">Mindmap erstellen</button>
-            <button data-question="Zeige mir alle verfügbaren Kategorien in der Datenbank" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">Datenbank durchsuchen</button>
+          <div class="quick-query-container">
+            <span class="text-sm text-gray-500 dark:text-gray-400 mr-1">Beispiele:</span>
+            <button data-question="Was sind die wichtigsten Grundlagen der Künstlichen Intelligenz?" class="quick-query-btn hover:shadow-sm">KI-Grundlagen</button>
+            <button data-question="Wie kann ich eine Mindmap zum Thema Neuronale Netzwerke erstellen?" class="quick-query-btn hover:shadow-sm">Mindmap erstellen</button>
+            <button data-question="Zeige mir alle verfügbaren Kategorien in der Datenbank" class="quick-query-btn hover:shadow-sm">Datenbank durchsuchen</button>
           </div>
         </div>
       </div>

templates/mindmap.html

@@ -1,115 +1,53 @@
-<!DOCTYPE html>
-<html lang="de">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Interaktive Mindmap</title>
+{% extends "base.html" %}
 
-  <!-- Cytoscape.js -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
+{% block title %}Mindmap{% endblock %}
 
-  <!-- Socket.IO -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.7.2/socket.io.min.js"></script>
-  
-  <!-- Feather Icons (optional) -->
-  <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
-  
-  <style>
-    * {
-      box-sizing: border-box;
-      margin: 0;
-      padding: 0;
-    }
-    
-    body {
-      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-      background-color: #f9fafb;
-      color: #111827;
-      line-height: 1.5;
-    }
-    
-    .container {
-      display: flex;
-      flex-direction: column;
-      height: 100vh;
+{% block extra_css %}
+<style>
+  /* Spezifische Stile für die Mindmap-Seite */
+  #cy {
     width: 100%;
+    height: 600px;
+    background-color: var(--bg-secondary);
+    transition: background-color 0.3s ease;
+    border-radius: 10px;
+    overflow: hidden;
+    position: relative;
   }
   
-    .header {
-      background-color: #1f2937;
-      color: white;
-      padding: 1rem;
-      display: flex;
-      justify-content: space-between;
-      align-items: center;
+  .mindmap-container {
+    position: relative;
+    border-radius: 10px;
+    overflow: hidden;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
+    transition: all 0.3s ease;
   }
   
-    .header h1 {
-      font-size: 1.5rem;
-      font-weight: 500;
+  .dark .mindmap-container {
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
   }
   
-    .toolbar {
-      background-color: #f3f4f6;
-      padding: 0.75rem;
+  .mindmap-toolbar {
     display: flex;
     gap: 0.5rem;
-      border-bottom: 1px solid #e5e7eb;
+    flex-wrap: wrap;
+    padding: 0.75rem;
+    background-color: var(--bg-secondary);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+    transition: background-color 0.3s ease;
+  }
+  
+  body:not(.dark) .mindmap-toolbar {
+    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
   }
   
   .btn {
-      background-color: #3b82f6;
-      color: white;
-      border: none;
-      border-radius: 0.25rem;
-      padding: 0.5rem 1rem;
-      font-size: 0.875rem;
-      cursor: pointer;
-      transition: background-color 0.2s;
     display: flex;
     align-items: center;
     gap: 0.5rem;
-    }
-    
-    .btn:hover {
-      background-color: #2563eb;
-    }
-    
-    .btn-secondary {
-      background-color: #6b7280;
-    }
-    
-    .btn-secondary:hover {
-      background-color: #4b5563;
-    }
-    
-    .btn-danger {
-      background-color: #ef4444;
-    }
-    
-    .btn-danger:hover {
-      background-color: #dc2626;
-    }
-    
-    .search-container {
-      flex: 1;
-      display: flex;
-      margin-left: 1rem;
-    }
-    
-    .search-input {
-      width: 100%;
-      max-width: 300px;
-      padding: 0.5rem;
-      border: 1px solid #d1d5db;
-      border-radius: 0.25rem;
     font-size: 0.875rem;
-    }
-    
-    #cy {
-      flex: 1;
-      width: 100%;
-      position: relative;
+    border-radius: 0.375rem;
+    transition: all 0.3s ease;
   }
   
   .category-filters {
@@ -117,8 +55,8 @@
     gap: 0.5rem;
     flex-wrap: wrap;
     padding: 0.75rem;
-      background-color: #ffffff;
-      border-bottom: 1px solid #e5e7eb;
+    background-color: var(--bg-secondary);
+    transition: background-color 0.3s ease;
   }
   
   .category-filter {
@@ -139,96 +77,281 @@
     opacity: 0.8;
   }
   
-    .footer {
-      background-color: #f3f4f6;
-      padding: 0.75rem;
-      text-align: center;
-      font-size: 0.75rem;
-      color: #6b7280;
-      border-top: 1px solid #e5e7eb;
-    }
-    
-    /* Kontextmenü Styling */
+  /* Kontextmenü */
   #context-menu {
     position: absolute;
-      background-color: white;
-      border: 1px solid #e5e7eb;
-      border-radius: 0.25rem;
-      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+    border-radius: 0.375rem;
     z-index: 1000;
+    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+    overflow: hidden;
+  }
+  
+  .dark #context-menu {
+    background-color: #232837;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
+  
+  body:not(.dark) #context-menu {
+    background-color: white;
+    border: 1px solid rgba(0, 0, 0, 0.1);
   }
   
   #context-menu .menu-item {
     padding: 0.5rem 1rem;
     cursor: pointer;
+    transition: background-color 0.2s ease;
   }
   
-    #context-menu .menu-item:hover {
-      background-color: #f3f4f6;
+  .dark #context-menu .menu-item:hover {
+    background-color: rgba(255, 255, 255, 0.05);
   }
-  </style>
-</head>
-<body>
-  <div class="container">
-    <header class="header">
-      <h1>Interaktive Mindmap</h1>
-      <div class="search-container">
-        <input type="text" id="search-mindmap" class="search-input" placeholder="Suchen...">
-      </div>
-    </header>
   
-    <div class="toolbar">
-      <button id="addNode" class="btn">
-        <i data-feather="plus-circle"></i>
-        Knoten hinzufügen
+  body:not(.dark) #context-menu .menu-item:hover {
+    background-color: rgba(0, 0, 0, 0.05);
+  }
+  
+  /* Info-Panel */
+  .mindmap-info-panel {
+    position: absolute;
+    right: 1rem;
+    top: 5rem;
+    width: 280px;
+    background-color: rgba(15, 23, 42, 0.85);
+    border-radius: 8px;
+    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+    padding: 1rem;
+    color: #f1f5f9;
+    opacity: 0;
+    transform: translateX(20px);
+    transition: all 0.3s ease;
+    pointer-events: none;
+    z-index: 10;
+    backdrop-filter: blur(4px);
+  }
+  
+  .mindmap-info-panel.visible {
+    opacity: 1;
+    transform: translateX(0);
+    pointer-events: auto;
+  }
+  
+  .info-panel-title {
+    font-size: 1.1rem;
+    font-weight: 600;
+    margin-bottom: 0.75rem;
+    padding-bottom: 0.5rem;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+  }
+  
+  .info-panel-description {
+    font-size: 0.875rem;
+    margin-bottom: 1rem;
+    line-height: 1.5;
+  }
+  
+  .node-navigation-title {
+    font-size: 0.9rem;
+    font-weight: 500;
+    margin-bottom: 0.5rem;
+  }
+  
+  .node-links {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+  }
+  
+  .node-link {
+    display: inline-block;
+    padding: 0.25rem 0.5rem;
+    font-size: 0.75rem;
+    border-radius: 4px;
+    cursor: pointer;
+    transition: transform 0.2s ease;
+    color: white;
+  }
+  
+  .node-link:hover {
+    transform: translateY(-2px);
+  }
+  
+  /* Mindmap-Toolbar-Buttons */
+  .mindmap-action-btn {
+    display: flex;
+    align-items: center;
+    gap: 0.35rem;
+    padding: 0.35rem 0.7rem;
+    font-size: 0.8rem;
+    border-radius: 0.25rem;
+    background-color: rgba(124, 58, 237, 0.1);
+    color: #8b5cf6;
+    border: 1px solid rgba(124, 58, 237, 0.2);
+    cursor: pointer;
+    transition: all 0.2s ease;
+  }
+  
+  .dark .mindmap-action-btn {
+    background-color: rgba(124, 58, 237, 0.15);
+    border-color: rgba(124, 58, 237, 0.3);
+  }
+  
+  .mindmap-action-btn:hover {
+    background-color: rgba(124, 58, 237, 0.2);
+  }
+  
+  /* Zusätzliches Layout */
+  .mindmap-section {
+    display: grid;
+    grid-template-columns: 1fr;
+    gap: 1.5rem;
+  }
+  
+  @media (min-width: 1024px) {
+    .mindmap-section {
+      grid-template-columns: 2fr 1fr;
+    }
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <div class="flex flex-col lg:flex-row gap-8">
+    <!-- Hauptinhalt -->
+    <div class="w-full lg:w-3/4">
+      <!-- Mindmap-Titelbereich -->
+      <div class="mb-6">
+        <h1 class="text-3xl font-bold mb-2 mystical-glow"
+            x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+          Wissenslandkarte
+        </h1>
+        <p class="opacity-80 text-lg"
+           x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+          Visualisiere die Verbindungen zwischen Gedanken und Konzepten
+        </p>
+      </div>
+
+      <!-- Mindmap-Container -->
+      <div class="mindmap-container">
+        <!-- Toolbar -->
+        <div class="mindmap-toolbar">
+          <button id="fit-btn" class="mindmap-action-btn">
+            <i class="fa-solid fa-expand"></i>
+            <span>Ansicht anpassen</span>
           </button>
-      <button id="addEdge" class="btn">
-        <i data-feather="git-branch"></i>
-        Verbindung erstellen
+          <button id="reset-btn" class="mindmap-action-btn">
+            <i class="fa-solid fa-undo"></i>
+            <span>Zurücksetzen</span>
           </button>
-      <button id="editNode" class="btn btn-secondary">
-        <i data-feather="edit-2"></i>
-        Knoten bearbeiten
-      </button>
-      <button id="deleteNode" class="btn btn-danger">
-        <i data-feather="trash-2"></i>
-        Knoten löschen
-      </button>
-      <button id="deleteEdge" class="btn btn-danger">
-        <i data-feather="scissors"></i>
-        Verbindung löschen
-      </button>
-      <button id="reLayout" class="btn btn-secondary">
-        <i data-feather="refresh-cw"></i>
-        Layout neu anordnen
-      </button>
-      <button id="exportMindmap" class="btn btn-secondary">
-        <i data-feather="download"></i>
-        Exportieren
+          <button id="toggle-labels-btn" class="mindmap-action-btn">
+            <i class="fa-solid fa-tags"></i>
+            <span>Labels ein/aus</span>
           </button>
         </div>
 
-    <div id="category-filters" class="category-filters">
-      <!-- Wird dynamisch befüllt -->
-    </div>
-    
+        <!-- Hauptvisualisierung -->
         <div id="cy"></div>
 
-    <footer class="footer">
-      Mindmap-Anwendung © 2023
-    </footer>
+        <!-- Info-Panel -->
+        <div id="node-info-panel" class="mindmap-info-panel">
+          <h4 class="info-panel-title">Knoteninfo</h4>
+          <p id="node-description" class="info-panel-description">Wählen Sie einen Knoten aus...</p>
+          
+          <div class="node-navigation">
+            <h5 class="node-navigation-title">Verknüpfte Knoten</h5>
+            <div id="connected-nodes" class="node-links">
+              <!-- Wird dynamisch befüllt -->
+            </div>
+          </div>
+        </div>
+      </div>
     </div>
 
-  <!-- Unsere Mindmap JS -->
-  <script src="{{ url_for('static', filename='js/mindmap.js') }}"></script>
+    <!-- Seitenleiste -->
+    <div class="w-full lg:w-1/4 space-y-6">
+      <!-- Nutzlänge -->
+      <div class="p-5 rounded-lg overflow-hidden border transition-colors duration-300"
+           x-bind:class="darkMode ? 'bg-slate-800/40 border-slate-700/50' : 'bg-white border-slate-200'">
+        <h3 class="text-xl font-semibold mb-3"
+            x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+          <i class="fa-solid fa-circle-info text-purple-400 mr-2"></i>Über die Mindmap
+        </h3>
+        <div x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+          <p class="mb-2">Die interaktive Wissenslandkarte zeigt Verbindungen zwischen verschiedenen Gedanken und Konzepten.</p>
+          <p class="mb-2">Sie können:</p>
+          <ul class="list-disc pl-5 space-y-1 text-sm">
+            <li>Knoten auswählen, um Details zu sehen</li>
+            <li>Zoomen (Mausrad oder Pinch-Geste)</li>
+            <li>Die Karte verschieben (Drag & Drop)</li>
+            <li>Die Toolbar nutzen für weitere Aktionen</li>
+          </ul>
+        </div>
+      </div>
 
-  <!-- Icons initialisieren -->
-  <script>
-    document.addEventListener('DOMContentLoaded', () => {
-      if (typeof feather !== 'undefined') {
-        feather.replace();
-      }
+      <!-- Kategorienlegende -->
+      <div class="p-5 rounded-lg overflow-hidden border transition-colors duration-300"
+           x-bind:class="darkMode ? 'bg-slate-800/40 border-slate-700/50' : 'bg-white border-slate-200'">
+        <h3 class="text-xl font-semibold mb-3"
+            x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+          <i class="fa-solid fa-palette text-purple-400 mr-2"></i>Kategorien
+        </h3>
+        <div id="category-legend" class="space-y-2 text-sm"
+             x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+          <!-- Wird dynamisch befüllt -->
+          <div class="flex items-center"><span class="w-3 h-3 rounded-full bg-purple-500 mr-2"></span> Philosophie</div>
+          <div class="flex items-center"><span class="w-3 h-3 rounded-full bg-green-500 mr-2"></span> Wissenschaft</div>
+          <div class="flex items-center"><span class="w-3 h-3 rounded-full bg-orange-500 mr-2"></span> Technologie</div>
+          <div class="flex items-center"><span class="w-3 h-3 rounded-full bg-pink-500 mr-2"></span> Künste</div>
+          <div class="flex items-center"><span class="w-3 h-3 rounded-full bg-blue-500 mr-2"></span> Psychologie</div>
+        </div>
+      </div>
+
+      <!-- Meine Mindmaps -->
+      {% if current_user.is_authenticated %}
+      <div class="p-5 rounded-lg overflow-hidden border transition-colors duration-300"
+           x-bind:class="darkMode ? 'bg-slate-800/40 border-slate-700/50' : 'bg-white border-slate-200'">
+        <h3 class="text-xl font-semibold mb-3"
+            x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+          <i class="fa-solid fa-map text-purple-400 mr-2"></i>Meine Mindmaps
+        </h3>
+        <div class="mb-3">
+          <a href="{{ url_for('create_mindmap') }}" class="w-full inline-block py-2 px-4 bg-purple-600 hover:bg-purple-700 text-white rounded-lg text-center text-sm font-medium transition-colors">
+            <i class="fa-solid fa-plus mr-1"></i> Neue Mindmap erstellen
+          </a>
+        </div>
+        
+        <div class="space-y-2 max-h-60 overflow-y-auto"
+             x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+          {% if user_mindmaps %}
+            {% for mindmap in user_mindmaps %}
+            <a href="{{ url_for('user_mindmap', mindmap_id=mindmap.id) }}" class="block p-2 hover:bg-purple-500/20 rounded-lg transition-colors">
+              <div class="text-sm font-medium">{{ mindmap.name }}</div>
+              <div class="text-xs opacity-70">{{ mindmap.nodes|length }} Knoten</div>
+            </a>
+            {% endfor %}
+          {% else %}
+            <p class="text-sm italic">Sie haben noch keine eigenen Mindmaps erstellt.</p>
+          {% endif %}
+        </div>
+      </div>
+      {% endif %}
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block extra_js %}
+<!-- Cytoscape.js laden -->
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.24.0/cytoscape.min.js" integrity="sha512-Ck7jF/eLOvDZ9TpQtO5N0I45/yGNpFKQnHMKVXPQDmQKo4HnWWfGDV0JIeG+kqoGA0TOYCpPNnGQ1gusYv4PA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+
+<!-- Mindmap-Initialisierer laden -->
+<script src="/static/js/mindmap-init.js"></script>
+
+<script>
+  // Sobald die Seite und die Scripte geladen sind, initialisiere die Mindmap
+  document.addEventListener('DOMContentLoaded', function() {
+    // Die Initialisierung wird jetzt direkt in mindmap-init.js ausgeführt
+    console.log('Mindmap-Seite geladen');
   });
-  </script>
-</body>
-</html>
+</script>
+{% endblock %}

templates/profile.html

@@ -559,6 +559,7 @@
     <div class="profile-tabs">
       <div class="profile-tab active" data-tab="activity">Aktivitäten</div>
       <div class="profile-tab" data-tab="thoughts">Gedanken</div>
+      <div class="profile-tab" data-tab="mindmaps">Mindmaps</div>
       <div class="profile-tab" data-tab="collections">Sammlungen</div>
       <div class="profile-tab" data-tab="connections">Verbindungen</div>
       <div class="profile-tab" data-tab="settings">Einstellungen</div>
@@ -632,6 +633,44 @@
         </div>
       </div>
       
+      <!-- Mindmaps-Tab -->
+      <div class="tab-content hidden" id="mindmaps-tab">
+        <div id="mindmaps-container">
+          {% if user_mindmaps %}
+            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+              {% for mindmap in user_mindmaps %}
+                <div class="mindmap-item bg-opacity-70 bg-gray-800 rounded-xl overflow-hidden border border-gray-700 transition-all duration-300 hover:transform hover:scale-105 hover:shadow-lg">
+                  <div class="p-5">
+                    <h3 class="text-xl font-bold text-purple-400 mb-2">{{ mindmap.name }}</h3>
+                    <p class="text-gray-300 mb-4 text-sm">{{ mindmap.description }}</p>
+                    <div class="flex justify-between items-center text-xs text-gray-400">
+                      <span>Erstellt: {{ mindmap.created_at.strftime('%d.%m.%Y') }}</span>
+                      <span>Zuletzt bearbeitet: {{ mindmap.last_modified.strftime('%d.%m.%Y') }}</span>
+                    </div>
+                  </div>
+                  <div class="bg-gray-900 p-3 border-t border-gray-700 flex justify-between">
+                    <a href="{{ url_for('mindmap') }}?id={{ mindmap.id }}" class="text-purple-400 hover:text-purple-300 transition-colors">
+                      <i class="fas fa-eye mr-1"></i> Anzeigen
+                    </a>
+                    <a href="{{ url_for('edit_mindmap', mindmap_id=mindmap.id) }}" class="text-blue-400 hover:text-blue-300 transition-colors">
+                      <i class="fas fa-edit mr-1"></i> Bearbeiten
+                    </a>
+                  </div>
+                </div>
+              {% endfor %}
+            </div>
+          {% else %}
+            <div class="text-center py-12">
+              <i class="fas fa-project-diagram text-5xl text-gray-400 mb-4"></i>
+              <p class="text-gray-500">Noch keine Mindmaps erstellt</p>
+              <a href="{{ url_for('create_mindmap') }}" class="mt-4 inline-block px-4 py-2 bg-purple-600 text-white rounded-lg hover:bg-purple-700 transition-colors">
+                Erste Mindmap erstellen
+              </a>
+            </div>
+          {% endif %}
+        </div>
+      </div>
+      
       <div class="tab-content hidden" id="collections-tab">
         <div id="collections-container">
           {% if collections %}

templates/simple_profile.html

@@ -0,0 +1,75 @@
+{% extends "base.html" %}
+
+{% block title %}Einfaches Profil{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-10">
+  <div class="bg-gray-800 bg-opacity-70 rounded-lg p-6 mb-6">
+    <h1 class="text-3xl font-bold text-purple-400 mb-4">Hallo, {{ user.username }}</h1>
+    <div class="text-gray-300 mb-4">
+      <p>E-Mail: {{ user.email }}</p>
+      <p>Mitglied seit: {{ user.created_at.strftime('%d.%m.%Y') }}</p>
+    </div>
+    
+    <h2 class="text-xl font-semibold text-purple-300 mt-6 mb-3">Deine Mindmaps</h2>
+    {% if user_mindmaps %}
+      <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+        {% for mindmap in user_mindmaps %}
+          <div class="bg-gray-700 bg-opacity-50 p-4 rounded-lg">
+            <h3 class="text-lg font-medium text-purple-400 mb-2">{{ mindmap.name }}</h3>
+            <p class="text-gray-300 text-sm mb-3">{{ mindmap.description }}</p>
+            <div class="flex justify-between text-xs text-gray-400">
+              <span>Erstellt: {{ mindmap.created_at.strftime('%d.%m.%Y') }}</span>
+            </div>
+            <div class="mt-4 flex justify-between">
+              <a href="{{ url_for('mindmap') }}?id={{ mindmap.id }}" class="text-purple-400 hover:text-purple-300">
+                <i class="fas fa-eye mr-1"></i> Anzeigen
+              </a>
+              <a href="{{ url_for('edit_mindmap', mindmap_id=mindmap.id) }}" class="text-blue-400 hover:text-blue-300">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </a>
+            </div>
+          </div>
+        {% endfor %}
+      </div>
+    {% else %}
+      <div class="text-center py-6">
+        <p class="text-gray-400">Du hast noch keine Mindmaps erstellt</p>
+        <a href="{{ url_for('create_mindmap') }}" class="mt-3 inline-block px-4 py-2 bg-purple-600 text-white rounded-lg hover:bg-purple-700">
+          Erste Mindmap erstellen
+        </a>
+      </div>
+    {% endif %}
+    
+    <h2 class="text-xl font-semibold text-purple-300 mt-8 mb-3">Deine Gedanken</h2>
+    {% if thoughts %}
+      <div class="space-y-4">
+        {% for thought in thoughts %}
+          <div class="bg-gray-700 bg-opacity-50 p-4 rounded-lg">
+            <h3 class="text-lg font-medium text-purple-400 mb-2">{{ thought.title }}</h3>
+            <p class="text-gray-300 text-sm mb-2">
+              {{ thought.abstract[:150] ~ '...' if thought.abstract and thought.abstract|length > 150 else thought.abstract }}
+            </p>
+            <div class="flex justify-between text-xs text-gray-400">
+              <span>Erstellt: {{ thought.created_at.strftime('%d.%m.%Y') }}</span>
+            </div>
+          </div>
+        {% endfor %}
+      </div>
+    {% else %}
+      <div class="text-center py-6">
+        <p class="text-gray-400">Du hast noch keine Gedanken erstellt</p>
+      </div>
+    {% endif %}
+    
+    <div class="mt-8 flex justify-between">
+      <a href="{{ url_for('index') }}" class="px-4 py-2 bg-gray-700 text-white rounded-lg hover:bg-gray-600">
+        Zurück zur Startseite
+      </a>
+      <a href="{{ url_for('logout') }}" class="px-4 py-2 bg-red-700 text-white rounded-lg hover:bg-red-600">
+        Abmelden
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %} 

update_db.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sqlite3
+import sys
+
+# Bestimme den absoluten Pfad zur Datenbank
+basedir = os.path.abspath(os.path.dirname(__file__))
+db_path = os.path.join(basedir, 'database', 'systades.db')
+
+def update_user_table():
+    """Aktualisiert die User-Tabelle mit den fehlenden Spalten"""
+    
+    # Überprüfe, ob die Datenbankdatei existiert
+    if not os.path.exists(db_path):
+        print(f"Datenbank nicht gefunden unter: {db_path}")
+        return False
+    
+    # Verbindung zur Datenbank herstellen
+    try:
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+        
+        # Überprüfe, ob die neuen Spalten bereits existieren
+        cursor.execute("PRAGMA table_info(user)")
+        columns = [info[1] for info in cursor.fetchall()]
+        
+        # Neue Spalten, die hinzugefügt werden müssen
+        new_columns = {
+            'bio': 'TEXT',
+            'location': 'VARCHAR(100)',
+            'website': 'VARCHAR(200)',
+            'avatar': 'VARCHAR(200)',
+            'last_login': 'DATETIME'
+        }
+        
+        # Spalten hinzufügen, die noch nicht existieren
+        for col_name, col_type in new_columns.items():
+            if col_name not in columns:
+                print(f"Füge Spalte '{col_name}' zur User-Tabelle hinzu...")
+                cursor.execute(f"ALTER TABLE user ADD COLUMN {col_name} {col_type}")
+        
+        # Änderungen speichern
+        conn.commit()
+        print("User-Tabelle erfolgreich aktualisiert!")
+        return True
+        
+    except sqlite3.Error as e:
+        print(f"Fehler bei der Datenbankaktualisierung: {e}")
+        return False
+    finally:
+        if conn:
+            conn.close()
+
+if __name__ == "__main__":
+    # Führe die Aktualisierung durch
+    success = update_user_table()
+    
+    if success:
+        print("Die Datenbank wurde erfolgreich aktualisiert.")
+        sys.exit(0)
+    else:
+        print("Es gab ein Problem bei der Datenbankaktualisierung.")
+        sys.exit(1) 

utils/user_manager.py

@@ -55,7 +55,7 @@ def create_user(username, email, password, is_admin=False):
             user = User(
                 username=username,
                 email=email,
-                is_admin=is_admin,
+                role='admin' if is_admin else 'user',
                 created_at=datetime.utcnow()
             )
             user.set_password(password)

venv/pyvenv.cfg

@@ -1,5 +1,5 @@
 home = C:\Program Files\Python313
 include-system-site-packages = false
 version = 3.13.3
-executable = C:\Program Files\Python313\python.exe
-command = C:\Program Files\Python313\python.exe -m venv C:\Users\TTOMCZA.EMEA\Dev\website\venv
+executable = C:\Users\firem\Desktop\111\Systades\website\.venv\Scripts\python.exe
+command = C:\Users\firem\Desktop\111\Systades\website\.venv\Scripts\python.exe -m venv C:\Users\firem\Desktop\111\Systades\website\venv

windows_setup.bat

@@ -1,58 +0,0 @@
-@echo off
-echo Mindmap Projekt - Windows Setup
-echo ==============================
-echo.
-
-REM Prüfen, ob Python installiert ist
-python --version >nul 2>&1
-if %errorlevel% neq 0 (
-    echo Python ist nicht installiert oder nicht im PATH.
-    echo Bitte installiere Python 3.11 von https://www.python.org/downloads/
-    echo und stelle sicher, dass "Add Python to PATH" während der Installation aktiviert ist.
-    pause
-    exit /b 1
-)
-
-echo Erstelle virtuelle Umgebung...
-python -m venv venv
-if %errorlevel% neq 0 (
-    echo Fehler beim Erstellen der virtuellen Umgebung.
-    pause
-    exit /b 1
-)
-
-echo Aktiviere virtuelle Umgebung...
-call venv\Scripts\activate.bat
-if %errorlevel% neq 0 (
-    echo Fehler beim Aktivieren der virtuellen Umgebung.
-    pause
-    exit /b 1
-)
-
-echo Aktualisiere pip...
-python -m pip install --upgrade pip
-if %errorlevel% neq 0 (
-    echo Warnung: Pip konnte nicht aktualisiert werden. Fahre trotzdem fort.
-)
-
-echo Installiere Abhängigkeiten...
-pip install -r requirements.txt
-if %errorlevel% neq 0 (
-    echo Fehler beim Installieren der Abhängigkeiten.
-    pause
-    exit /b 1
-)
-
-echo.
-echo Setup abgeschlossen!
-echo.
-echo Zum Starten des Servers:
-echo 1. Führe "venv\Scripts\activate.bat" aus
-echo 2. Führe "python TOOLS.py db:rebuild" aus (Nur beim ersten Mal oder zum Zurücksetzen der Datenbank)
-echo 3. Führe "python TOOLS.py user:admin" aus (Erstellt einen Admin-Benutzer: admin/admin)
-echo 4. Führe "python TOOLS.py server:run" aus
-echo.
-echo Die Anwendung ist dann unter http://localhost:5000 erreichbar.
-echo.
-
-pause