Fix: Set flag instead of trying to reconnect in onClosed

app/src/main/java/com/nexlab/openclaw/node/data/remote/NodeClient.kt

@@ -307,10 +307,8 @@ class NodeClient() {
                     Log.d(TAG, "Connection rejected due to device auth, will send pairing request on reconnect")
                     // Set flag to send pairing request after reconnect
                     pendingPairingAfterConnect = true
-                    // Reconnect after brief delay using Handler
-                    android.os.Handler(android.os.Looper.getMainLooper()).postDelayed({
-                        connect(currentNodeId, currentToken, capabilities)
-                    }, 500)
+                    // Don't reconnect here - let the app retry naturally
+                    // The next connect() call will check pendingPairingAfterConnect
                     return
                 }