Merge: regional ISO 639 variants + language priority list (#2)
Region-aware TMDB image matching (pt-BR posters via per-region filter calls),
comma-separated ordered preferred/fallback cascades, auto-expansion of regional
library languages, regional locale for episode title lookup. Bumps to 0.8.0.
Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com