E5 S6 backend half (no migration — the *_hu / rich columns exist from S5a/S5b).
Language-aware serving (?lang=hu serves the HU overlay twin, EN fallback per row):
- query.py: column pickers title_col / genres_col / vector_col; field_recheck and
meta_filter_conds take `lang`. DISPLAY/FILTER pickers coalesce(*_hu, *) (EN
fallback); SEARCH pickers use the raw *_hu column mirroring the generated
search_vector_hu (coalesce to '', not EN) so the field recheck stays a strict
subset of the GIN vector (the S2 invariant). genres_col type_coerces the coalesce
to JSONB so the GIN `.contains` survives.
- browse.py: `lang` param on /library, /facets, /item, /show (validated to en|hu).
unified_library title/vector/rank/field-scope + meta filters are language-aware
for both the movie and show branches; facets unnest the active-language genre
vocabulary (jsonb_typeof guard kept); detail endpoints serve HU title/summary/
genres/show_title with EN fallback. Episodes stay EN (not overlay-localized).
IMDb-only rating (folded-in S5b review #5):
- detail.py rich_detail: drop the audienceRating/rating fallback → imdb_rating is
NULL when there's no imdb:// Rating entry (stop mislabelling a Plex audience score
as IMDb). item_detail now also serves the `rating` column (audience score;
show_detail already did) so the UI can show it when there's no IMDb score.
Tests: test_plex_lang.py (HU title serving + EN fallback, language-specific facet
vocabulary, genre-filter language matching, item_detail lang + rating split);
test_plex_detail updated for IMDb-only. DB-lane suite 293 passed / 2 skipped; ruff clean.
peter
030ba7297a