Test file updates:
- Update import paths in test files: bookmann/internal → bookhoard/internal
- Update test helper functions and references
- Update test comments and documentation
This is part 6 of the project rename to Bookhoard.
- Add /devices route for device management interface
- Add /conflicts route for sync conflict resolution
- Add /queue route for sync queue management
- Add comprehensive tests for device cap management
- Add test suite for queue management
john-okeefe