Fix user list display in admin dashboard

- Added debug endpoint to verify database contents
- Enhanced logging in user list API endpoint
- Fixed user query to properly return all users
- Added frontend debugging for troubleshooting

The user list now correctly displays all users in the system.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -264,6 +264,49 @@ def init_admin_user():
             'error': 'Failed to create admin user'
         }), 500
 
+@app.route('/api/debug-users')
+def debug_users():
+    """Debug endpoint to check all users in database"""
+    try:
+        # Check if database tables exist
+        from sqlalchemy import inspect
+        inspector = inspect(db.engine)
+        tables = inspector.get_table_names()
+        
+        # Get all users
+        all_users = User.query.all()
+        
+        # Also try a raw SQL query to double-check
+        raw_result = db.session.execute('SELECT COUNT(*) FROM users').scalar()
+        
+        # Get some raw user data
+        raw_users = db.session.execute('SELECT id, username, email, role FROM users LIMIT 10').fetchall()
+        
+        return jsonify({
+            'database_tables': tables,
+            'total_users': len(all_users),
+            'raw_count': raw_result,
+            'raw_users_sample': [{'id': str(row[0]), 'username': row[1], 'email': row[2], 'role': row[3]} for row in raw_users],
+            'users': [
+                {
+                    'id': str(user.id),
+                    'username': user.username,
+                    'email': user.email,
+                    'role': user.role,
+                    'is_active': user.is_active,
+                    'is_suspended': user.is_suspended,
+                    'created_at': user.created_at.isoformat()
+                }
+                for user in all_users
+            ]
+        })
+    except Exception as e:
+        import traceback
+        return jsonify({
+            'error': str(e),
+            'traceback': traceback.format_exc()
+        }), 500
+
 # Initialize memory management
 memory_manager = MemoryManager(app, {
     'memory_threshold_mb': app.config.get('MEMORY_THRESHOLD_MB', 4096),