feat: Add SUPER_ADMIN role with dedicated admin user management and updated access controls for existing admin features.

src/messages/messages.gateway.ts

@@ -85,7 +85,7 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
     this.logger.log(`Client connected successfully: ${client.id} (User: ${userId}, Role: ${payload.role})`);
 
     // Auto-join admin users to admin_room for support chat notifications
-    if (payload.role === 'ADMIN') {
+    if (payload.role === 'ADMIN' || payload.role === 'SUPER_ADMIN') {
       client.join('admin_room');
       this.logger.log(`Admin ${userId} joined admin_room`);
     }