API (gear.py):
- POST /api/gear/{id}/parts
- PATCH /api/gear/{id}/parts/{pid}
- DELETE /api/gear/{id}/parts/{pid}
- POST /api/gear/{id}/parts/{pid}/replacements
- DELETE /api/gear/{id}/parts/{pid}/replacements/{rid}
UI (AthleteView.svelte):
- Gear rows are now accordion-expandable
- Collapsed row shows colored status dots (green/yellow/red) per part
- Expanded section: parts list with km-since-replacement colored by threshold,
Replaced button with date+note form, recent log entries, add-part form
- Contextual suggestion for first part (chain for bikes, shoes for running)
- Edit/delete gear moved into expanded section
Davide Scaini
bdee036204