Replace single trainer list with a tabbed sidebar interface:
- Three tabs with dynamic counts for each category
- Venue cards with icon, name, location, and upcoming events count
- Event cards with date badge, title, venue, and cost
- Visibility toggles moved from map overlay to sidebar header
- Context-aware search placeholder based on active tab
- Client-side filtering for instant search results
- Info button and modal with usage instructions and map legend
- Keyboard navigation for tabs (arrow keys)
- All lists sync with map viewport on pan/zoom
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
ben
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