Add watchlist catalog filters, search, and preset catalogs

[leo-mathurin]

Summary

• Add configurable genre, decade, runtime, and IMDb rating filters.
• Support catalog search with accent-insensitive title matching.
• Add temporary Stremio dropdown filters and sorting options.
• Add optional short, rated, and shuffle preset catalogs.
• Improve release-date handling, caching fallbacks, and metadata behavior.
• Persist catalog settings with migration and update documentation.
• Save watchlists and the RPDB key in one database transaction; preserve omitted settings and clean up deleted caches after commit.

Testing

• Added backend coverage for catalog filtering, routing, search, presets, CRUD persistence, cache fallbacks, and IMDb release dates.
• Passed: lint, builds, typechecks, and all 176 backend tests.
• Passed PostgreSQL regression tests for transaction rollback, mixed omitted/explicit settings, ownership validation, and RPC permissions; added these checks to CI.

Rollout

• Apply the catalog settings and replace_user_config database migrations before deploying the backend.

[vercel]

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2 Skipped Deployments

Project	Deployment	Actions	Updated
stremlist-backend	Ignored	Preview	Sep 15, 2026 8:01am UTC
stremlist-frontend	Ignored	Preview	Sep 15, 2026 8:01am UTC

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge, with the previously reported partial-commit problem fully addressed by the transactional replacement function.

Summary

This PR adds configurable catalog filters, accent-insensitive search, temporary Stremio dropdown selections, preset catalogs, complete release-date sorting, and transactional configuration persistence.

• Adds shared catalog settings and corresponding frontend configuration controls.
• Applies saved and temporary filters before pagination while supporting stable shuffle and preset ordering.
• Extends IMDb metadata and cached records with validated complete release dates.
• Replaces independent configuration writes with a PostgreSQL transaction and performs cache cleanup only after commit.
• Adds backend, database, and CI regression coverage for the new behavior.

_{Reviews (3) · Last reviewed commit: "fix: save watchlist configuration atomic..."}

[leo-mathurin]

@greptile review

[leo-mathurin]

@greptile review