- RouteCalculator now calls POST /api/routes/plan instead of OSRM directly
- generateGoogleMapsUrl renamed to generateAmapUrl with Amap URI format
- placeGoogleMaps.ts and placeOpenStreetMap.ts now return Amap marker URLs
- All related tests updated (32 RouteCalculator + 104 DayPlanSidebar + 23 hooks integration tests pass)