Standardize alignment of struct tags in models and field assignments in services for better readability. Additionally, include the Binding model in the test database auto-migration.
- Add TESTING.md documentation explaining unit test conventions and integration testing setup - Add miniredis and sqlite dependencies to go.mod for in-memory testing - Add provider_handler_test.go ensuring Vertex providers default google_location to "global" - Add request_id_test.go verifying request ID generation and header preservation - Add sync_test.go validating Redis snapshot writes and routing key generation - Update README.md with testing section referencing new documentation
