When users send iMessages containing URLs, BlueBubbles sends separate
webhook events for the text message and the URL balloon/link preview.
This caused Clawdbot to receive them as separate queued messages.
This fix adds inbound debouncing (following the pattern from WhatsApp/MS Teams):
- Uses the existing createInboundDebouncer utility from plugin-sdk
- Adds debounceMs config option to BlueBubblesAccountConfig (default: 500ms)
- Routes inbound messages through debouncer before processing
- Combines messages from same sender/chat within the debounce window
- Handles URLBalloonProvider messages by coalescing with preceding text
- Skips debouncing for messages with attachments or control commands
Config example:
channels.bluebubbles.debounceMs: 500 # milliseconds (0 to disable)
Fixes inbound URL message splitting issue.