Phase 0: Fix test infrastructure
- Fix critical bug in test_helpers.go (dead code, wrong return type)
- Add test_helpers_db.go with 6 new helper functions:
* verifyDeviceCreated, verifyDeviceDeleted
* verifyUserField, verifyMediaItemInDB, verifyMediaItemDeleted
* createTestLibraryWithFolder
- Impact: All tests can now create users reliably
- Create Phase 1 example (phase1_example_test.go) demonstrating:
* Struct-based assertions replacing map[string]interface{}
* Database verification after mutations
* Type-safe compile-time error detection
- Impact: Template pattern for remaining 500+ conversions
This work transforms brittle map-based tests into reliable struct-based
assertions with database verification, preventing silent API changes
and data corruption bugs.
john-okeefe
2deb845cbc