Feat/v0.5 upcoming rail

[apantaz]

Summary

• Add local catalog title search across titles and original titles
• Respect selected region, providers, and global discovery filters
• Display active search scope beneath the search field
• Add TMDB ratings with gold stars and N/A for unrated titles
• Add posters, metadata, and provider information to search results
• Add TMDB and JustWatch attribution
• Display catalog freshness using the visitor's local timezone

Validation

• 112 backend tests passed
• 25 frontend tests passed
• Ruff and ESLint passed
• TypeScript checks passed
• dbt compile, docs generation, and parse passed
• Production frontend build passed
• Secret detection passed