Add tests to all packages, remove passWithNoTests
Every package now has tests — no more empty test suites:
- map-core: 33 tests — maxspeedColor, routeGradeColor, elevationColor,
POI categories, getCategoriesForProfile, tile layer configs
- db: 5 tests — withDb error handling (503 on DB error, re-throws
Response/DataWithResponseInit, logs errors)
- ui: 14 tests — Button variants/sizes/disabled, Input label/id/error,
Card className forwarding
- map: 2 tests — baseLayers/overlayLayers re-export verification
Remove passWithNoTests from vitest.shared.ts so missing tests are
caught immediately when adding new packages.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>