test: improve coverage for settings, funfacts types, and context enricher

[engels74]

Summary

• Add tests for previously untested functions in settings.service.ts (UI theme, Plex config, CSRF config)
• Add tests for InsufficientStatsError class in funfacts/types.ts
• Add tests for isContextEnriched and ensureEnrichedContext in context-enricher.ts

Coverage Improvements

File	Before	After
context-enricher.ts	50% funcs, 77% lines	100% both
funfacts/types.ts	67% funcs, 89% lines	100% both
settings.service.ts (targeted lines)	Lines 103-107, 111, 412-426, 430-431, 475-480 uncovered	All covered

Test plan

• All 83 new/modified tests pass
• No regressions in existing tests

[augmentcode]

🤖 Augment PR Summary

Summary: This PR improves unit test coverage across admin settings helpers and fun-facts utilities, without changing production behavior.

Changes:

• Extended tests/unit/admin/settings.service.test.ts to cover UI theme persistence (getUITheme/setUITheme), Plex configuration completeness (isPlexConfigured), and CSRF helpers (getCsrfConfigWithSource, getCsrfOrigin, and warning dismissal/reset helpers).
• Added tests/unit/funfacts/context-enricher.test.ts to validate trivia enrichment math, isContextEnriched, and ensureEnrichedContext idempotence/non-mutation behavior.
• Added tests/unit/funfacts/types.test.ts to validate fun-facts error types (FunFactsError, AIGenerationError, InsufficientStatsError) including message/code/status/cause semantics.

Technical Notes:

• Tests run against the in-memory SQLite DB created in tests/setup.ts and rely on mocked SvelteKit $env modules for deterministic config behavior.
• Coverage improvements primarily target previously untested branches around config resolution (default vs DB vs env) and enrichment/type guards.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. No suggestions at this time.

Comment augment review to trigger a new review at any time.

[engels74]

augment review

[augmentcode]

Review completed. No suggestions at this time.

Comment augment review to trigger a new review at any time.