fix: remove hardcoded webhookId to prevent import conflict in n8n

https://claude.ai/code/session_01TSV3FcRdbPFXKZUAftjEoQ

Author: claude

n8n-alicia-meta-ads.json

@@ -14,8 +14,7 @@
       "position": [
         -336,
         112
-      ],
-      "webhookId": "alicia-meta-ads-001"
+      ]
     },
     {
       "parameters": {