feat(planner): real road routes (OSRM) with travel-time connectors (#1060)

* feat(planner): real road routes (OSRM) with travel-time connectors

Replace the straight-line "as the crow flies" route with real OSRM road
geometry (FOSSGIS routed-car/-foot) and an Apple-Maps style render
(blue casing under a lighter core) on both the Leaflet and Mapbox GL
maps. Routes are off by default and toggled per session, with a
driving/walking mode switch in the day footer.

Each day shows per-segment travel time/distance connectors between
places, computed from the OSRM legs and split at transport bookings.

Also redesigns the day header for visual consistency: vertical
number+weather capsule, name with a divider before the date, subtle
hotel/rental pills that stay on one line, and a hover-revealed 2x2
action square (edit / add transport / add note / collapse). Drops the
Google Maps button.

* test(planner): update route hook tests for calculateRouteWithLegs

client/src/types.ts

@@ -237,8 +237,19 @@ export interface RouteSegment {
   mid: [number, number]
   from: [number, number]
   to: [number, number]
+  distance: number
+  duration: number
   walkingText: string
   drivingText: string
+  distanceText: string
+  durationText?: string
+}
+
+export interface RouteWithLegs {
+  coordinates: [number, number][]
+  distance: number
+  duration: number
+  legs: RouteSegment[]
 }
 
 export interface RouteResult {