PWA: vis dyplenket tilfluktsrom nederst i lista med badge (hybrid)

Speiler Android-fiksen i 1fb9f14/337e9b9. Når en dyplenke eller
markørtap velger et tilfluktsrom utenfor de N nærmeste, ble det tidligere
unshift-et inn på indeks 0 og framstod som nærmest — uten forklaring.

Nå:
- app.ts: push i stedet for unshift på begge steder, valgt indeks = siste;
  ny modultilstand outsideNearestRomnr og renderShelterList()-helper
- shelter-list.ts: updateList() tar outsideNearestRomnr, tegner badge på
  den raden, prefikser badge-teksten i aria-label (samme rekkefølge som
  contentDescription i ShelterListAdapter.kt) og scrollIntoView() til
  valgt rad (auto i stedet for smooth ved prefers-reduced-motion)
- main.css: .shelter-item-badge med #BF360C (= warning_bg på Android,
  ~5.6:1 mot hvit → WCAG 2.2 AA SC 1.4.3)
- i18n en/nb/nn: shelter_outside_nearest_badge

Verifisert i Chromium (Playwright): posisjon Oslo, dyplenke /shelter/1681
(Vardø) → tre nærmeste først, fjerde rad med badge, selected og
aria-label "Selected (outside nearest). Kaigaten 8 …, 1487.1 km …".

Forgejo: #17

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FrDGDmN2WAXvNPS85rWJGK

pwa/src/app.ts

@@ -28,6 +28,11 @@ const NEAREST_COUNT = 3;
 let allShelters: Shelter[] = [];
 let nearestShelters: ShelterWithDistance[] = [];
 let selectedShelterIndex = 0;
+// romnr of a user-selected shelter that has been appended to the list because
+// it is outside the geographic top-N (deep link, marker tap). null when the
+// selection is a genuine top-N entry. Drives the "outside nearest" badge in
+// the list — mirrors ShelterListItem.isOutsideNearest in the Android app.
+let outsideNearestRomnr: number | null = null;
 let currentLocation: LatLon | null = null;
 let deviceHeading = 0;
 let isCompassMode = false;
@@ -248,6 +253,15 @@ function startLocationUpdates(): void {
   );
 }
 
+/** Re-render the bottom-sheet list from current module state. */
+function renderShelterList(): void {
+  shelterList.updateList(
+    nearestShelters,
+    selectedShelterIndex,
+    outsideNearestRomnr,
+  );
+}
+
 function updateNearestShelters(location: LatLon): void {
   if (allShelters.length === 0) return;
 
@@ -268,10 +282,14 @@ function updateNearestShelters(location: LatLon): void {
     );
     if (inList >= 0) {
       selectedShelterIndex = inList;
+      outsideNearestRomnr = null;
     } else {
       const shelter = allShelters.find((s) => s.romnr === selectedRomnr);
       if (shelter) {
-        nearestShelters.unshift({
+        // Append (not prepend) so the list keeps its sorted-by-distance
+        // invariant; the badge explains why this row is here. Same hybrid
+        // approach as MainActivity.rebuildShelterList() on Android.
+        nearestShelters.push({
           shelter,
           distanceMeters: distanceMeters(
             location.latitude, location.longitude,
@@ -282,20 +300,23 @@ function updateNearestShelters(location: LatLon): void {
             shelter.latitude, shelter.longitude,
           ),
         });
-        selectedShelterIndex = 0;
+        selectedShelterIndex = nearestShelters.length - 1;
+        outsideNearestRomnr = shelter.romnr;
       } else {
         // Selected shelter no longer exists in the dataset (e.g. DSB
         // decommissioned it). Fall back to nearest.
         selectedRomnr = null;
         userSelectedShelter = false;
         selectedShelterIndex = 0;
+        outsideNearestRomnr = null;
       }
     }
   } else {
     selectedShelterIndex = 0;
+    outsideNearestRomnr = null;
   }
 
-  shelterList.updateList(nearestShelters, selectedShelterIndex);
+  renderShelterList();
   updateSelectedShelter(false);
 
   statusBar.setStatus(t('status_shelters_loaded', allShelters.length));
@@ -337,7 +358,7 @@ function updateSelectedShelter(isUserAction: boolean): void {
   compassView.setNorthAngle(-deviceHeading);
 
   // Update shelter list selection
-  shelterList.updateList(nearestShelters, selectedShelterIndex);
+  renderShelterList();
 
   // Update map: highlight selected and optionally fit view
   if (isUserAction) {
@@ -503,13 +524,15 @@ function selectShelterByData(shelter: Shelter): void {
         )
       : NaN;
 
-    nearestShelters.unshift({
+    // Append rather than prepend — see updateNearestShelters().
+    nearestShelters.push({
       shelter,
       distanceMeters: dist,
       bearingDegrees: bearing,
     });
-    selectedShelterIndex = 0;
-    shelterList.updateList(nearestShelters, selectedShelterIndex);
+    selectedShelterIndex = nearestShelters.length - 1;
+    outsideNearestRomnr = shelter.romnr;
+    renderShelterList();
   }
 
   updateSelectedShelter(true);