- Add /api/v1/tags endpoint for listing available tags
- Enhance search API with tag filtering (AND logic), multi-category
filtering (OR logic), owner filter, download range, and date range
- Add faceted response support (category/tag/owner counts)
- Update registry client with new search parameters and get_tags method
- Add CLI search options: -t/--tag, -o/--owner, --min-downloads,
--popular, --new, --since, --before, --json, --show-facets
- Add new 'registry tags' CLI subcommand
- Add web UI filter sidebar with checkboxes, dropdowns, and active
filter chips with URL-based state management
- Display clickable tags on tool cards
Co-Authored-By: Claude Opus 4.5 <[email protected]>