Implement complete web interface for the Gear entity:
- Add GearView model with category badges and formatted display
- Create GearTemplate and GearListTemplate for Askama rendering
- Build main gear page with collapsible add form (Datastar-powered)
- Implement gear list table with sortable columns and pagination
- Use trash icon for delete actions matching roasts table design
- Add Gear navigation link in main menu between Bags and Timeline
- Integrate gear events into timeline view with proper labels and links
The web UI follows the established patterns from other entities with
Datastar for reactive fragment updates and proper authentication gating.
Apply code formatting fixes across all gear-related modules.
- Add push_update_field! macro to reduce UPDATE query boilerplate
- Rename sort_clause() to order_clause() for consistency
- Convert bags.rs update method from string concatenation to QueryBuilder
- Apply macro to roasters.rs, roasts.rs, and bags.rs update methods
This reduces ~100 lines of repetitive code and ensures consistent
patterns for building dynamic UPDATE queries across all repositories.
