修复了WS连接稳定性问题

components/platform/src/multimodal/transport_ws.c

@@ -156,7 +156,7 @@ static bool s_connected;
 static bool s_stop_requested;
 static portMUX_TYPE s_client_state_lock = portMUX_INITIALIZER_UNLOCKED;
 static char s_bearer_token[MULTIMODAL_WS_TOKEN_MAX_LEN];
-static char s_headers[384];
+static char s_headers[768];
 
 static multimodal_ws_event_callback_t s_event_cb;
 static void *s_event_cb_ctx;

components/platform/src/multimodal/transport_ws/transport_ws_runtime_impl.c

@@ -32,7 +32,9 @@ static void websocket_event_handler(void *handler_args,
                  stop_requested ? "WebSocket disconnected (local stop)" :
                                   "WebSocket disconnected");
         ws_set_stop_requested(false);
-        emit_event(MULTIMODAL_WS_EVENT_DISCONNECTED, NULL, 0U);
+        if (!stop_requested) {
+            emit_event(MULTIMODAL_WS_EVENT_DISCONNECTED, NULL, 0U);
+        }
         break;
     }