chore: clean up remaining OSRM references and update settings

- Add 'amap' to map_provider valid values in settingsService
- Remove outdated OSRM comments from useRouteCalculation, useTransportRoutes, DayPlanSidebar

client/src/components/Planner/DayPlanSidebar.tsx

@@ -419,7 +419,7 @@ function useDayPlanSidebar(props: DayPlanSidebarProps) {
   const routeDayKey = routeDayIds.join(',')
 
   // Per-segment travel times shown as connectors between a day's located stops.
-  // Groups located places into runs (split at transports), one cached OSRM call per
+  // Groups located places into runs (split at transports), one cached API call per
   // run keyed by the start place's assignment id, plus the hotel bookend legs. Shares
   // RouteCalculator's cache with the map. Runs for every day in routeDayIds — one
   // selected day on desktop, each Route-toggled day on mobile (#1374).
@@ -430,7 +430,7 @@ function useDayPlanSidebar(props: DayPlanSidebarProps) {
     const hotelName = (a: Accommodation) => (a as any).place_name || (a as any).reservation_title || ''
 
     // Pure per-day plan: the drive runs (each ≥2 waypoints) and which hotel bookend
-    // legs to draw. Side-effect free, so the async loop below only does OSRM I/O.
+    // legs to draw. Side-effect free, so the async loop below only does routing I/O.
     const planDay = (dayId: number) => {
       const merged = mergedItemsMap[dayId] || []
       const runs: { id: number; lat: number; lng: number }[][] = []
@@ -500,7 +500,7 @@ function useDayPlanSidebar(props: DayPlanSidebarProps) {
       const legsByDay: Record<number, Record<number, RouteSegment>> = {}
       const hotelByDay: Record<number, { top?: { seg: RouteSegment; name: string }; bottom?: { seg: RouteSegment; name: string } }> = {}
 
-      // One cached OSRM call per waypoint pair; shares RouteCalculator's cache.
+      // One cached API call per waypoint pair; shares RouteCalculator's cache.
       const legBetween = async (a: { lat: number; lng: number }, b: { lat: number; lng: number }): Promise<RouteSegment | undefined> => {
         try {
           const r = await calculateRouteWithLegs([a, b], { signal: controller.signal, profile: routeProfile })

client/src/hooks/useRouteCalculation.ts

@@ -13,7 +13,7 @@ const NO_ACCOMMODATIONS: Accommodation[] = []
 
 /**
  * Manages route calculation state for a selected day. Extracts geo-coded waypoints from
- * day assignments, draws a straight-line route immediately, then upgrades it to real OSRM
+ * day assignments, draws a straight-line route immediately, then upgrades it to real
  * road geometry with per-segment durations. Aborts in-flight requests when the day changes.
  */
 export function useRouteCalculation(tripStore: TripStoreState, selectedDayId: number | null, enabled: boolean = true, profile: 'driving' | 'walking' | 'cycling' = 'driving', accommodations: Accommodation[] = NO_ACCOMMODATIONS) {
@@ -161,7 +161,7 @@ export function useRouteCalculation(tripStore: TripStoreState, selectedDayId: nu
     if (runsWithHotel.length === 0) { setRoute(null); setRouteSegments([]); return }
 
     // Draw straight lines immediately for snappiness, then upgrade to the real
-    // OSRM road geometry.
+    // road geometry.
     setRoute(straightLines())
 
     const controller = new AbortController()
@@ -176,7 +176,7 @@ export function useRouteCalculation(tripStore: TripStoreState, selectedDayId: nu
           allLegs.push(...r.legs)
         } catch (err) {
           if (err instanceof Error && err.name === 'AbortError') throw err
-          // OSRM failed for this run — fall back to a straight line, no times.
+          // Routing failed for this run — fall back to a straight line, no times.
           polylines.push(run.map(p => [p.lat, p.lng] as [number, number]))
         }
       }

client/src/hooks/useTransportRoutes.ts

@@ -22,7 +22,7 @@ const ROAD_PROFILE: Record<string, 'driving' | 'cycling'> = {
 
 // Beyond this straight-line distance a car/taxi/bike (or even coach) booking is
 // almost always a data quirk or an inter-continental hop the road router can't
-// resolve — keep the straight line and don't hammer the public OSRM demo.
+// resolve — keep the straight line and don't hammer the routing API.
 const MAX_ROUTE_KM = 2000
 
 function haversineKm(a: { lat: number; lng: number }, b: { lat: number; lng: number }): number {

server/src/services/settingsService.ts

@@ -41,7 +41,7 @@ const VALID_VALUES: Partial<Record<DefaultableKey, unknown[]>> = {
   distance_unit: ['metric', 'imperial'],
   time_format: ['12h', '24h'],
   dark_mode: [true, false, 'light', 'dark', 'auto'],
-  map_provider: ['leaflet', 'mapbox-gl', 'maplibre-gl'],
+  map_provider: ['leaflet', 'mapbox-gl', 'maplibre-gl', 'amap'],
   llm_provider: ['local', 'openai', 'anthropic'],
 };