feat: dynamic artist name extraction from Slack prompts

[recoup-coding-agent]

Summary

• Extracts artist name from Slack prompts using AI (e.g. "generate a video for Mac Miller")
• Looks up the artist in the account's roster via getAccountArtistIds with case-insensitive + partial matching
• Falls back to Gatsby Grace (default) when no artist name provided or no match found
• Adds artistName optional field to contentPromptFlagsSchema
• New resolveArtistFromName() function for name → artist_id resolution

Test plan

• 6 unit tests for resolveArtistFromName (exact match, partial match, no match, empty name, empty roster)
• 2 unit tests for parseContentPrompt artistName extraction
• 3 unit tests for registerOnNewMention (dynamic artist, fallback on no name, fallback on no match)
• All 1655 existing tests still pass

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 1c8ee7bc-028f-4827-bddd-dc128a9ed36e

📥 Commits

Reviewing files that changed from the base of the PR and between 4afc4cf and fac739f.

⛔ Files ignored due to path filters (3)

• lib/agents/content/__tests__/parseContentPrompt.test.ts is excluded by !**/*.test.*, !**/__tests__/** and included by lib/**
• lib/agents/content/__tests__/registerOnNewMention.test.ts is excluded by !**/*.test.*, !**/__tests__/** and included by lib/**
• lib/agents/content/__tests__/resolveArtistFromName.test.ts is excluded by !**/*.test.*, !**/__tests__/** and included by lib/**

📒 Files selected for processing (3)

• lib/agents/content/createContentPromptAgent.ts
• lib/agents/content/handlers/registerOnNewMention.ts
• lib/agents/content/resolveArtistFromName.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/slack-artist-name-param

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Project	Deployment	Actions	Updated (UTC)
recoup-api	Ready	Preview	Mar 31, 2026 2:36pm