feat: add loved and liked all recommendation catalogs

[TimilsinaBimal]

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Project	Deployment	Review	Updated (UTC)
watchly	Ready	Preview, Comment	Dec 27, 2025 11:09am

[gemini-code-assist]

Summary of Changes

Hello @TimilsinaBimal, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces two significant new recommendation features: 'Based on what you loved' and 'Based on what you liked' catalogs. These additions enhance the user experience by providing more personalized content suggestions derived from a comprehensive analysis of their past interactions. The implementation involves a new dedicated service for these recommendations, alongside a substantial refactoring of the existing catalog generation and management architecture to centralize and streamline the process. The API endpoints and default configurations have been updated to support these new features, and the project version has been incremented.

Highlights

• New Recommendation Catalogs: Introduced two new recommendation catalogs: 'Based on what you loved' (watchly.all.loved) and 'Based on what you liked' (watchly.liked.all), providing more personalized content suggestions.
• AllBasedService Implementation: A new service, AllBasedService, was added to generate recommendations by aggregating suggestions from a user's top loved or liked items, incorporating filtering, scoring, and metadata enrichment.
• Catalog Management Refactoring: The logic for dynamically adding catalogs has been centralized within app/services/catalog.py, streamlining the process and removing redundant code from other modules like manifest.py and catalog_updater.py.
• API Endpoint Simplification: The manifest.py endpoint was simplified by removing direct catalog generation logic and Response object handling, now relying on the refactored catalog service for dynamic catalog population.
• Default Settings and Frontend Update: The new catalogs are now included in the default user settings and the frontend script, with 'From your favourite Creators' and the new 'all loved/liked' catalogs initially disabled.
• Version Bump: The project version has been updated from '1.4.5' to '1.5.0'.

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[gemini-code-assist]

Code Review

This pull request introduces new recommendation catalogs based on all 'loved' and 'liked' items, which is a great addition. The implementation includes a new AllBasedService and updates to the settings and catalog generation logic. The code is well-structured, but I've found a critical bug that could cause a server error when generating the manifest for users without custom settings. I've also identified a few areas for improvement regarding code duplication, readability, and a potential behavioral change with item padding in catalogs. Please see my detailed comments below.

[TimilsinaBimal]

/gemini review

[gemini-code-assist]

Code Review

This pull request introduces new recommendation catalogs based on all 'loved' and 'liked' items, supported by a new AllBasedService. The changes also include a valuable refactoring that centralizes catalog generation logic into the DynamicCatalogService, improving the overall code structure. The new feature is well-integrated. My feedback focuses on improving maintainability by replacing magic numbers with constants and removing some redundant code.