Add missing score_kind field to SearchHit constructors in:
- kebab-tui/tests/search.rs::make_hit()
- kebab-eval/tests/metrics_and_compare.rs::hit()
- kebab-eval/src/metrics.rs::hit()
All test fixtures default to Rrf (hybrid mode), matching the field's
Default impl and the test semantics.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>