- Fix 'key is not defined' error in publishDiscDesignToNostr function
- Preserve layers when importing disc designs into template slots from both JSON files and Nostr
- Check both discDesign.layers and top-level payload.layers during import
- Populate designer metadata (title, category, imdbId) when loading projects
- Auto-set Nostr browse modal to 'disc-design' filter when importing from template slots
- Add undo/redo feature plan documentation for future implementation
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
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