feat(tours): plan a trail run on forest tracks and natural paths

RUN-02. Trail running joins Running as a run profile, chosen on purpose in
the planner and in the GPX import. It asks Valhalla's pedestrian costing for
tracks wherever they serve (use_tracks 1) and admits mountain paths up to T2
(max_hiking_difficulty 2), never T3 and above, with ferries only where no
way on land exists. Checked with trace_attributes against the public
instance: above Freiburg Guenterstal up to the Schauinsland the route went
from 82 % roads and 83 % paved (running) to 78 % forest tracks and 81 %
compacted, gravel and dirt; Rathen to the Bastei took 28 % of T2 path that
running leaves out; Heidelberg's old town stayed as it was. Leaning on
footways (walkway_factor) was tried and left out, it moved runs onto paved
footways.

While a run is planned, a card says what it runs on: its surfaces, the
hiking grades of its paths (sac_scale, T1 to T6, as mappers gave them) and
its kinds of way, each as shares with lengths that point at their stretches
on the map. A way without a grade or a surface is its own row, unknown and
never easy, and an info dot says the grades say nothing about whether a way
can be run. The head carries the unpaved share and the hardest graded path
as badges. The line is matched on foot for this, so steps and mountain
paths stay on it; a bike tour's is matched as before. Reading fails, goes
offline or is retried as for a bike tour, and nothing of it changes the run.

Pace and time are RUN-01's: the running time stays the distance at the
runner's pace, with climbs, descents and difficulty left out, whatever the
profile. A profile change plans the route again and keeps the pace; a
failed trail route keeps the last route and holds Save back. The card's
building blocks moved out of the bike card into RouteWaySections, so both
cards share one set of rows, bars and status lines.

The run_profile column already allowed trail (RUN-01), so no migration.
GPX export names a trail run trail_running, list_tours describes the
profile as a routing preference, never a statement that a way can be run.

server/src/nest/tours/tour-gpx-export.helpers.ts

@@ -16,9 +16,10 @@ const BIKE_ACTIVITY: Record<BikeProfile, string> = {
   mtb: 'mountain_biking',
 };
 
-/** RUN-01: a run says how it is run, in the same words. */
+/** RUN-01, RUN-02: a run says how it is run, in the same words. */
 const RUN_ACTIVITY: Record<RunProfile, string> = {
   running: 'running',
+  trail: 'trail_running',
 };
 
 /**

server/src/nest/tours/tours.mcp.ts

@@ -85,7 +85,7 @@ export class ToursMcp {
   @Tool({
     name: 'list_tours',
     description:
-      'List the saved tours of a trip (hikes, city walks, runs, bike tours and paddle tours planned or imported in the Tours addon): name, type (hike, walk for a city walk, run, bike, or kayak for a paddle tour), where it came from (origin: trek, gpx or wanderer), distance in km, ascent and descent in metres, the stored routing limit of a hike (max_hiking_difficulty, SAC T1 to T6) and its route choices (hiking_preferences: avoid_climbs for gentler ways, avoid_steps, avoid_ferries; weightings, never a grade of the path), the profile a bike tour is routed for (bike_profile: touring for paved cycle paths and quiet roads, road for asphalt, gravel for gravel and farm tracks, mtb for rough tracks; a routing preference, never a statement that a way is rideable or safe), the winter label of a hike (winter_activity: winter_hike or snowshoe, null for none; a label the travellers chose, while the route and its time are planned as for any hike, never a statement that a way can be walked in winter or anything about snow or avalanches), the profile and pace of a run (run_profile: running for runnable, mostly paved ways in towns and parks; run_pace_seconds_per_km, the pace the runners planned with, null while they entered none; its duration is the distance at that pace and nothing else, no climb, descent or difficulty is in it, and it is a plan, never a recorded time), the boat, water and chosen speed of a paddle tour (boat_type, water_context, paddle_speed_kmh in km/h, null while the suggested speed of the boat applies), the check bench of a paddle tour (paddle_check: how far the OpenStreetMap obstacle data covers its line and how many obstacles are open, to check again or decided by the travellers; a planning status, never a safety or legal clearance), for a city walk the number of its stations (station_count: its points without the shaping points and the way back of a loop), their stays as far as entered (station_stay_minutes) and how many have none (station_stays_unknown), whether a tour still waits for its way to be planned (route_pending: saved with its points only, so its distance and walking time stay null until someone opens it in the planner and saves it), the revision (raised by every saved change of the tour), and the days of the trip each tour is on.',
+      'List the saved tours of a trip (hikes, city walks, runs, bike tours and paddle tours planned or imported in the Tours addon): name, type (hike, walk for a city walk, run, bike, or kayak for a paddle tour), where it came from (origin: trek, gpx or wanderer), distance in km, ascent and descent in metres, the stored routing limit of a hike (max_hiking_difficulty, SAC T1 to T6) and its route choices (hiking_preferences: avoid_climbs for gentler ways, avoid_steps, avoid_ferries; weightings, never a grade of the path), the profile a bike tour is routed for (bike_profile: touring for paved cycle paths and quiet roads, road for asphalt, gravel for gravel and farm tracks, mtb for rough tracks; a routing preference, never a statement that a way is rideable or safe), the winter label of a hike (winter_activity: winter_hike or snowshoe, null for none; a label the travellers chose, while the route and its time are planned as for any hike, never a statement that a way can be walked in winter or anything about snow or avalanches), the profile and pace of a run (run_profile: running for runnable, mostly paved ways in towns and parks, trail for forest tracks and natural paths up to mountain paths (T2); a routing preference, never a statement that a way can be run; run_pace_seconds_per_km, the pace the runners planned with, null while they entered none; its duration is the distance at that pace and nothing else, no climb, descent or difficulty is in it, and it is a plan, never a recorded time), the boat, water and chosen speed of a paddle tour (boat_type, water_context, paddle_speed_kmh in km/h, null while the suggested speed of the boat applies), the check bench of a paddle tour (paddle_check: how far the OpenStreetMap obstacle data covers its line and how many obstacles are open, to check again or decided by the travellers; a planning status, never a safety or legal clearance), for a city walk the number of its stations (station_count: its points without the shaping points and the way back of a loop), their stays as far as entered (station_stay_minutes) and how many have none (station_stays_unknown), whether a tour still waits for its way to be planned (route_pending: saved with its points only, so its distance and walking time stay null until someone opens it in the planner and saves it), the revision (raised by every saved change of the tour), and the days of the trip each tour is on.',
     inputSchema: { tripId: idSchema },
     annotations: TOOL_ANNOTATIONS_READONLY,
     when: addonGate(ADDON_IDS.TOURS),