0dc053881a
Symmetric to TmdbShowInfo / get_tv_show_info — gives the upcoming
sync_movie orchestrator a typed cache snapshot for the v2 movie
library index.
* TmdbMovieInfo(tmdb_id, imdb_id, title, release_year)
* parse_movie_info(details, external_ids) — pure builder, parses
release_year from the first 4 chars of release_date (None on
missing/empty/non-numeric)
* TMDBClient.get_movie_info(tmdb_id) — aggregates
/movie/{id} + /movie/{id}/external_ids and feeds the parser
Tests cover happy path, missing/null/empty imdb_id, every
release_year edge (none/empty/short/non-numeric/missing key),
and the two required-field errors (id, title).