The fixture_discovery.rs module (516 lines) already provides:
- Standalone module with comprehensive documentation
- Public API: discover_all_fixtures(), discover_fixtures_by_category(), discover_fixtures_flat(), etc.
- Path normalization (symlinks, relative paths, absolute paths)
- Full test coverage (13 unit tests)
All 50 tests pass across the fixture discovery ecosystem:
- fixture_discovery.rs: 13 tests
- cli_invocation_fixtures.rs: 18 tests
- forms_integration.rs: 19 tests
Acceptance criteria verified:
✅ Discovery code is in its own module/file
✅ Provides clear public functions for getting PDF fixtures
✅ Is importable and usable from test code
No code changes required - implementation already complete.
