Fix superadmin access control and modal aria-hidden warning

- Implement role normalization system to handle role name variants (superadmin, super_admin, administrator)
- Add session persistence configuration (PERMANENT_SESSION_LIFETIME = 7 days)
- Add modules JSON column to users database table schema
- Update setup script with backward compatibility check for modules column
- Fix user_management_simple route to properly fetch and display modules
- Resolve modal aria-hidden accessibility warning by managing focus on close button
- All changes deployed and tested successfully

py_app/app/routes.py

@@ -103,7 +103,15 @@ def login():
         
         if user:
             session['user'] = user['username']
-            session['role'] = user['role']
+            session.permanent = True  # Make session persistent
+            # Normalize the role name to canonical form
+            from app.permissions_simple import normalize_role
+            normalized = normalize_role(user['role'])
+            session['role'] = normalized
+            session.modified = True  # Ensure session is saved
+            
+            import sys
+            print(f"[DEBUG] Login - Original role: {user['role']}, Normalized: {normalized}, Session role: {session.get('role')}, Permanent: {session.permanent}", file=sys.stderr)
             
             # Load user's modules into session
             user_modules = []
@@ -119,6 +127,7 @@ def login():
                 user_modules = ['quality', 'warehouse', 'labels', 'daily_mirror']
             
             session['modules'] = user_modules
+            session.modified = True  # Ensure all session changes are saved
             
             # Check app license for non-superadmin users
             if user['role'] != 'superadmin':
@@ -318,6 +327,7 @@ def user_management_simple():
         cursor = conn.cursor()
         cursor.execute("SHOW TABLES LIKE 'users'")
         if cursor.fetchone():
+            # Select users with modules column
             cursor.execute("SELECT id, username, role, modules FROM users")
             for row in cursor.fetchall():
                 user_data = {
@@ -348,8 +358,9 @@ def user_management_simple():
         
         return render_template('user_management_simple.html', users=users)
     except Exception as e:
-        print(f"Error in user_management_simple: {e}")
-        flash('Error loading user management page.')
+        import traceback
+        error_details = traceback.format_exc()
+        flash(f'Error loading user management page: {str(e)} - {error_details}', 'danger')
         return redirect(url_for('main.dashboard'))
 
 @bp.route('/create_user_simple', methods=['POST'])