- Update agent router/service/repository with new endpoints
- Update auth routes with phone-based authentication
- Update users service with new phone lookup
- Update schedule_items with new schemas
- Update message schemas with visibility support
- Update settings with new automation scheduler config
- Update CLI with new commands
- Update tests to match new API contracts
- Add send_request(), accept_request(), decline_request(), cancel_request()
- Add get_inbox(), get_outgoing_requests(), get_friends_list(), remove_friend()
- Add unit tests for all service methods (14 tests)
- Update FriendRequestResponse schema to include 'canceled' status
- Follow async SQLAlchemy patterns and BaseService conventions