Add madbonez/caldav-mcp to Communication section

- Universal MCP server for CalDAV protocol integration
- Works with any CalDAV-compatible calendar server (Yandex, Google, Nextcloud, ownCloud, iCloud, etc.)
- Supports creating events with recurrence, categories, priority, attendees, reminders
- Features: search events, get by UID, delete events
- 86 unit tests with 84% code coverage
- 8 E2E tests with real CalDAV server

README.md

@@ -341,6 +341,7 @@ Integration with communication platforms for message management and channel oper
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