The Lucene term dictionary stores lowercased word tokens for analyzed text
fields ("Science Fiction" -> science/fiction), so the typeahead was
suggesting fragments instead of whole values. GetSearchFieldValuesHandler
now injects IDbContextFactory<TvContext> and resolves an explicit
per-field-name distinct-values query (genre/studio/director/writer/actor/
artist/tag/network/collection/video_codec/album), with state and
video_dynamic_range computed in memory and content_rating split on '/' to
match what search actually matches on. title/show_title/album_artist have
no distinct source and now correctly 404 (free-text fallback), same as
before. Reverts the GetFieldValues additions to ISearchIndex/
LuceneSearchIndex/ElasticSearchIndex back to their pre-#434 state (BOM
stripped per #311, otherwise byte-identical). Endpoint shape, DTO,
controller, and OpenAPI are unchanged (no diff from
./scripts/update-openapi.sh).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds GET /api/v1/search/fields/{name}/values?q=&limit= — the backend slice of the
visual rule builder's facet-value typeahead (#434). Enumerates distinct Lucene term
values for a text field via MultiFields.GetTerms + TermsEnum, filtered by a
case-insensitive prefix, limit clamped to [1,50]. 404s when the field is absent from
SearchFieldCatalog or is not type "text". ElasticSearchIndex (the optional external
backend) throws NotSupportedException for this method — its text fields are analyzed,
not keyword-mapped, so a terms aggregation isn't safe to guess at without verifying
against a live cluster.
Regenerated OpenAPI trio (v1.json, v1.d.ts, endpoint-index.md).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>