Initial commit: 5 MCP servers for Mail, Calendar, Contacts, Files, Notes

Self-hosted MCP servers with OAuth client_credentials auth.
Each server connects to a different backend:
- Mail: reads Maildir IMAP backups
- Calendar/Tasks: CalDAV against Radicale
- Contacts: CardDAV against Radicale
- Files: WebDAV against oCIS
- Notes: Joplin REST API

Credentials externalized to config.json (not in repo).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,5 @@
+venv/
+__pycache__/
+*.pyc
+tokens.json
+config.json