fix(bluebubbles): remove invalid 'message' event from webhook registration

'message' is not a valid BlueBubbles webhook event type — only
'new-message' and 'updated-message' are. The invalid event caused
a 400 Bad Request from the BlueBubbles server, preventing webhook
registration entirely.

Also removes 'message' from the _MESSAGE_EVENTS filter set for
consistency (dead entry since the server never sends that event type).

Co-authored-by: Osman Mehmood <88900308+mehmoodosman@users.noreply.github.com>

gateway/platforms/bluebubbles.py

@@ -53,7 +53,7 @@ _TAPBACK_REMOVED = {
 }
 
 # Webhook event types that carry user messages
-_MESSAGE_EVENTS = {"new-message", "message", "updated-message"}
+_MESSAGE_EVENTS = {"new-message", "updated-message"}
 
 # Log redaction patterns
 _PHONE_RE = re.compile(r"\+?\d{7,15}")
@@ -267,7 +267,7 @@ class BlueBubblesAdapter(BasePlatformAdapter):
 
         payload = {
             "url": webhook_url,
-            "events": ["new-message", "updated-message", "message"],
+            "events": ["new-message", "updated-message"],
         }
 
         try: