feat(autoplay): spotify-taste-blend — candidate scoring with user taste boost

[LucasSantana-Dev]

Summary

Integrates Spotify user taste into candidate scoring for personalized recommendations.

Changes

• spotifyRecommender.ts: Add +0.08 score boost when candidate artist matches user's top artists

Test Coverage

• Score calculation: taste-blend boost applied only when match found
• Case-insensitive artist matching
• Stacking with other scoring factors (preferred artists, frequency)
• Null handling when user not linked

Details

• Depends on: feat/spotify-api-user-top (feat(spotify): api-user-top — fetch user top artists and tracks #686) and feat/spotify-user-seeds (feat(spotify): user-seeds — user taste data extraction and caching #687)
• Graceful degradation if Spotify API unavailable or user unlinked
• Stacks seamlessly with existing CandidateScorer logic

Related

Part 3 of 3-part Spotify OAuth integration (#680 split for focused review).

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Project	Deployment	Actions	Updated (UTC)
lucky	Ready	Preview, Comment	Apr 17, 2026 10:56pm

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 2efdfdbe-b7fa-4fe0-bf4c-6a8653114958

📥 Commits

Reviewing files that changed from the base of the PR and between 2758be6 and e32ca06.

📒 Files selected for processing (1)

• packages/bot/src/utils/music/autoplay/spotifyRecommender.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/autoplay-spotify-taste-blend

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
43.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud