Remove the custom IndexedDB implementation (idb package + services/storage.ts)
and rewrite skills + achievements stores to use @manacore/local-store collections.
Changes:
- Rewrite skills.svelte.ts: all CRUD via skillCollection/activityCollection
- Rewrite achievements.svelte.ts: all persistence via achievementCollection
- Delete services/storage.ts (282 lines of custom idb code)
- Remove idb dependency from package.json
- Simplify layout comments
The stores now follow the same pattern as all other migrated apps:
reads/writes go to IndexedDB (Dexie.js), sync happens automatically
via mana-sync when authenticated.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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