Support Classify Holds, Fork Climb, and Playlists for MoonBoard

[marcodejongh]

Summary

The following features are currently hidden for MoonBoard because they are not yet fully implemented:

1. Classify Holds - Hold classification wizard for user-specific hold setups
2. Fork Climb - Create a new climb based on an existing one
3. Playlists - User playlists functionality (both menu items and climb card action)

Current Status

These features are temporarily disabled for MoonBoard in:

• packages/web/app/components/board-page/header.tsx - Menu items hidden (Classify Holds, My Playlists)
• packages/web/app/components/climb-actions/actions/fork-action.tsx - Fork action disabled
• packages/web/app/components/climb-actions/actions/playlist-action.tsx - Playlist action disabled

Tasks

• Investigate what's needed to support hold classification for MoonBoard
• Implement fork climb functionality for MoonBoard
• Implement playlists support for MoonBoard
• Remove the isMoonboard feature flags once all features are working

Notes

MoonBoard uses a different data model compared to Aurora boards (Kilter, Tension), so these features may require additional work to support the MoonBoard-specific schema.