docs: remove completed bookshelf and collections filter implementation plan

Remove BOOKSHELF_COLLECTIONS_FILTER_PLAN.md - this plan has been fully implemented:
- Bookshelf page with SSR-first architecture and Alpine.js integration 
- Collections book picker modal with Alpine.store for state persistence 
- All TypeScript files written and working 
- All templates updated with HTMX/Alpine patterns 
- Navigation link added 

The implementation is complete and tested. This planning document lives on
in git history for reference. Keeping the repository clean of completed plans.

Implementation details preserved in:
- SAVED_FILTERS_IMPLEMENTATION.md (for future saved filters feature)
- docs/developer/alpine-patterns.md (Alpine.js patterns used)
- Git commit history (all implementation commits)
This commit is contained in:
2026-03-20 23:10:28 -04:00
parent 974f332b7e
commit a63394f429
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