Fix: Add truncate-table endpoint and improve dark mode visibility for usernames

- Added missing /api/maintenance/truncate-table endpoint to fix 404 error
- Fixed dark mode visibility issue for usernames in Current Users table
- Added explicit color styling for username strong tags in both light and dark modes

py_app/app/routes.py

@@ -5216,6 +5216,86 @@ def drop_table():
         }), 500
 
 
+@bp.route('/api/maintenance/truncate-table', methods=['POST'])
+@admin_plus
+def truncate_table():
+    """Truncate a database table - removes all rows but keeps structure"""
+    try:
+        data = request.json
+        table_name = data.get('table_name', '').strip()
+        
+        if not table_name:
+            return jsonify({
+                'success': False,
+                'message': 'Table name is required'
+            }), 400
+        
+        # Validate table name to prevent SQL injection
+        if not table_name.replace('_', '').isalnum():
+            return jsonify({
+                'success': False,
+                'message': 'Invalid table name format'
+            }), 400
+        
+        # Load database config directly
+        settings_file = os.path.join(current_app.instance_path, 'external_server.conf')
+        config = {}
+        with open(settings_file, 'r') as f:
+            for line in f:
+                if '=' in line:
+                    key, value = line.strip().split('=', 1)
+                    config[key] = value
+        
+        conn = mariadb.connect(
+            host=config.get('server_domain', 'localhost'),
+            port=int(config.get('port', '3306')),
+            user=config.get('username', 'root'),
+            password=config.get('password', ''),
+            database=config.get('database_name', 'trasabilitate')
+        )
+        cursor = conn.cursor()
+        
+        # Verify table exists and get row count
+        cursor.execute("""
+            SELECT COUNT(*) as count
+            FROM information_schema.TABLES
+            WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s
+        """, (config.get('database_name', 'trasabilitate'), table_name))
+        
+        result = cursor.fetchone()
+        if not result or result[0] == 0:
+            cursor.close()
+            conn.close()
+            return jsonify({
+                'success': False,
+                'message': f'Table "{table_name}" does not exist'
+            }), 404
+        
+        # Get current row count before truncating
+        cursor.execute(f"SELECT COUNT(*) FROM `{table_name}`")
+        row_count = cursor.fetchone()[0]
+        
+        # Truncate the table
+        cursor.execute(f"TRUNCATE TABLE `{table_name}`")
+        conn.commit()
+        
+        cursor.close()
+        conn.close()
+        
+        return jsonify({
+            'success': True,
+            'message': f'Table "{table_name}" has been cleared successfully',
+            'rows_cleared': row_count,
+            'structure_preserved': True
+        })
+        
+    except Exception as e:
+        return jsonify({
+            'success': False,
+            'message': f'Failed to truncate table: {str(e)}'
+        }), 500
+
+
 @bp.route('/api/backup/table', methods=['POST'])
 @admin_plus
 def backup_single_table():

py_app/app/templates/user_management_simple.html

@@ -245,6 +245,15 @@
         background-color: rgba(255, 255, 255, 0.075) !important;
     }
     
+    /* Theme-aware username styling */
+    body.light-mode .user-management-page .table td strong {
+        color: #000 !important;
+    }
+    
+    body.dark-mode .user-management-page .table td strong {
+        color: #fff !important;
+    }
+    
     /* Theme-aware form elements */
     .user-management-page .form-control {
         border: 1px solid #ced4da !important;