fix: Resolve playlist duplicate items and add /playlists route

[marcodejongh]

• Fix duplicate climbs issue caused by COALESCE in LEFT JOIN creating
  cartesian product when playlistClimbs.angle is NULL (Aurora-synced)
• Add new /playlists route at root level for simpler navigation
• Add allUserPlaylists GraphQL query to fetch all playlists across boards
• Add getDefaultBoardDetails helper for rendering playlists without
  full URL context
• Support cross-layout playlist viewing with default board configurations

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Project	Deployment	Review	Updated (UTC)
boardsesh	Building		Jan 2, 2026 0:09am

[claude]

Claude Review

✅ Ready to merge - Minor issues noted below, but nothing blocking.

Issues

1. Unused prop - packages/web/app/playlists/[playlist_uuid]/playlist-view-actions.tsx:10: boardDetails prop is declared but never used. Remove it from the type and component props.

2. Hardcoded colors in CSS - The CSS files (playlist-view.module.css, playlists.module.css) use hardcoded color values like #F9FAFB, #111827, #6B7280 instead of design tokens from theme-config.ts. Per CLAUDE.md, design tokens should be used for colors. Consider using CSS variables or moving styles that need tokens to inline styles.

3. Inline styles - packages/web/app/playlists/[playlist_uuid]/playlist-climbs-list.tsx:207-208: Uses inline style prop with hardcoded values (color: '#888', padding: '20px'). CLAUDE.md says to avoid the style property and use design tokens.

4. Missing test coverage - No tests included for the new /playlists route, allUserPlaylists query, or the duplicate fix in the SQL join condition.