v0.3.0

Added

• Three new tools: get_similar, get_reviews, get_collection. get_similar
  returns TMDB's algorithmic "similar titles" for a movie or TV show (distinct from
  the editorial get_movie_recommendations); get_reviews returns user reviews
  (author, their rating, the review text) for a movie or TV show; get_collection
  returns a movie franchise/collection and all its parts in release order.
• Richer detail lookups (no extra requests). get_movie now surfaces
  collection (the franchise a film belongs to — feed its id to get_collection)
  and origin_country. get_tv now surfaces next_episode_to_air /
  last_episode_to_air (when the next / most-recent episode airs), a per-season
  seasons summary, homepage and type — all from the payload already fetched.

Fixed

• get_watch_providers could return another region's providers. The result
  is region-specific but was cached under an id-only key, so a second call for
  the same title with a different region served the first region's data. The
  region is now part of the cache key.

Internal

• DRY: collapsed the movie/tv client method pairs (recommendations, similar,
  genres, discover, watch providers, videos) into media-typed methods, and
  extracted a tmdbCheck() helper in check:api. Raised test coverage
  (clients/tmdb 76% → 87%, overall ~90%).