- Fix create_time_entry() using self._client instead of self.client
- GET /member-mappings now returns all active account users, not just mapped
ones — allows manual assignment when auto-match by email doesn't work
- PsaMemberMappingResponse mapping fields are now Optional (id, external_member_id,
external_member_name, matched_by) to represent unmapped users
- Frontend MemberMappingTab skips null external_member_id when building
localMappings, and derives user list from all returned entries
- Add docs/connectwise-psa-testing-checklist.md
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
