fix: handle Bambu connection state by introducing bambuDisabled flag

src/bambu.cpp

@@ -607,14 +607,13 @@ bool setupMqtt() {
     bool success = loadBambuCredentials();
 
     if (!success) {
-        Serial.println("Failed to load Bambu credentials");
-        oledShowMessage("Bambu Credentials Missing");
-        vTaskDelay(2000 / portTICK_PERIOD_MS);
+        bambuDisabled = true;
         return false;
     }
 
     if (success && bambu_ip != "" && bambu_accesscode != "" && bambu_serialnr != "") 
     {
+        bambuDisabled = false;
         sslClient.setCACert(root_ca);
         sslClient.setInsecure();
         client.setServer(bambu_ip, 8883);

src/main.cpp

@@ -100,7 +100,7 @@ void loop() {
   // Wenn Bambu auto set Spool aktiv
   if (autoSendToBambu && autoSetToBambuSpoolId > 0) 
   {
-    if (!bambu_connected) 
+    if (!bambuDisabled && !bambu_connected) 
     {
       bambu_restart();
     }