Implement Flask-Migrate for database migrations in app.py, disable CSRF protection, and update requirements.txt to include Flask-Migrate. Remove obsolete systades.db file and add migration configuration files for Alembic.

migrations/versions/d4406f5b12f7_add_password_column_to_user.py

@@ -0,0 +1,46 @@
+"""Add password column to user
+
+Revision ID: d4406f5b12f7
+Revises: 
+Create Date: 2025-04-28 21:26:37.430823
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'd4406f5b12f7'
+down_revision = None
+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('password', sa.String(length=512), nullable=False, server_default="changeme"))
+        batch_op.add_column(sa.Column('is_active', sa.Boolean(), nullable=True))
+        batch_op.add_column(sa.Column('role', sa.String(length=20), nullable=True))
+        batch_op.drop_column('last_login')
+        batch_op.drop_column('bio')
+        batch_op.drop_column('password_hash')
+        batch_op.drop_column('is_admin')
+        batch_op.drop_column('avatar')
+
+    # ### 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.add_column(sa.Column('avatar', sa.VARCHAR(length=200), nullable=True))
+        batch_op.add_column(sa.Column('is_admin', sa.BOOLEAN(), nullable=True))
+        batch_op.add_column(sa.Column('password_hash', sa.VARCHAR(length=128), nullable=True))
+        batch_op.add_column(sa.Column('bio', sa.TEXT(), nullable=True))
+        batch_op.add_column(sa.Column('last_login', sa.DATETIME(), nullable=True))
+        batch_op.drop_column('role')
+        batch_op.drop_column('is_active')
+        batch_op.drop_column('password')
+
+    # ### end Alembic commands ###