feat: Enhance socket reconnection and chat screen lifecycle management, and refine agent detail and home screen UI.

lib/features/messaging/data/socket_service.dart

@@ -68,9 +68,9 @@ class SocketService {
       .setAuth({'token': token})
       .disableAutoConnect()
       .enableReconnection()
-      .setReconnectionAttempts(5)
+      .setReconnectionAttempts(double.maxFinite.toInt())
       .setReconnectionDelay(1000)
-      .setReconnectionDelayMax(5000)
+      .setReconnectionDelayMax(10000)
       .build(),
     );
 
@@ -97,6 +97,18 @@ class SocketService {
       _connectionController.add(false);
     });
 
+    _socket!.onReconnect((_) {
+      _log.i('Socket reconnected successfully');
+    });
+
+    _socket!.onReconnectAttempt((attempt) {
+      _log.w('Socket reconnection attempt #$attempt');
+    });
+
+    _socket!.onReconnectError((error) {
+      _log.e('Socket reconnection error: $error');
+    });
+
     // Listen for events
     _socket!.on('new_message', (data) {
       try {
@@ -172,6 +184,12 @@ class SocketService {
     _socket?.connect();
   }
 
+  /// Ensure socket is connected — reconnect if needed.
+  Future<void> ensureConnected() async {
+    if (_socket?.connected == true) return;
+    await connect();
+  }
+
   void disconnect() {
     _intentionalDisconnect = true;
     _socket?.disconnect();