- _checkout_branch now returns bool and falls back gracefully on failure
- Glob warning message includes matched file count
- Fix database model comment to reference remote_url
- Update tests for new branch checkout behavior
All 51 tests pass
- Add ConfigProfile and ConfigProfileInclude data models with migrations
- Implement profile resolver service with ordered includes and merge rules
- Add profile CRUD API with validation, compatibility, and cycle detection
- Add instance API plumbing for profile selection on create/start/restart
- Add resolved profile preview and default resolution APIs
- Add frontend config profile API client and management UI
- Add launch/restart profile selection UI
- Add backend integration and unit tests (31 passing)
OpenSpec: add-config-profiles
Quality gates: ruff, TypeScript compile, 31 tests passing