Enhance WebSocket service with polling fallback and improved diagnostics

- Added configuration options for polling fallback and polling interval to the WebSocket service, enabling a backup mechanism for real-time updates when WebSocket connections fail.
- Implemented detailed logging for WebSocket events, including connection status, message handling, and error diagnostics, to improve monitoring and debugging capabilities.
- Updated connection handling to manage polling effectively, ensuring users receive timely updates even during WebSocket disruptions.

These changes enhance the reliability and transparency of the WalletWebSocketService, contributing to a better user experience.

src/app.config.ts

@@ -78,7 +78,9 @@ export const appConfig: AppConfig = {
         websocket: {
           enabled: import.meta.env.VITE_WEBSOCKET_ENABLED !== 'false', // Can be disabled via env var
           reconnectDelay: 2000, // 2 seconds (increased from 1s to reduce server load)
-          maxReconnectAttempts: 3 // Reduced from 5 to avoid overwhelming server
+          maxReconnectAttempts: 3, // Reduced from 5 to avoid overwhelming server
+          fallbackToPolling: true, // Enable polling fallback when WebSocket fails
+          pollingInterval: 10000 // 10 seconds for polling updates
         }
       }
     }