address code review: POI order matches plan, self-documenting height reserve

Reorders the Verbrannte Straße POIs to plan §8's authored sequence
(hunt, investigate, search, then the scout) — purely a keyboard tab-order
fix, since hotspots are placed by percentage, not list order.

Rewrites the location page's viewport-height reserve as a calc() over the
same rem values the top bar and footer already declare as their own
min-block-size, with file:line pointers to both, instead of an opaque
191px constant. Doesn't remove the underlying coupling (still no
ResizeObserver / shared token), but a future edit to either component's
minimum height now has a documented, unit-matching term to update instead
of an unexplained magic number.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

apps/web/src/app/features/world/current-location.fixture.ts

@@ -23,16 +23,6 @@ export const BURNED_ROAD_POIS: LocationPointOfInterest[] = [
     yPercent: 44,
     enabled: true,
   },
-  {
-    key: 'wounded-scout',
-    title: 'Verwundeter Kundschafter',
-    actionLabel: 'Sprechen',
-    type: 'NPC',
-    iconKey: 'speak',
-    xPercent: 20,
-    yPercent: 60,
-    enabled: true,
-  },
   {
     key: 'inspect-tracks',
     title: 'Verdächtige Spuren',
@@ -53,6 +43,16 @@ export const BURNED_ROAD_POIS: LocationPointOfInterest[] = [
     yPercent: 68,
     enabled: true,
   },
+  {
+    key: 'wounded-scout',
+    title: 'Verwundeter Kundschafter',
+    actionLabel: 'Sprechen',
+    type: 'NPC',
+    iconKey: 'speak',
+    xPercent: 20,
+    yPercent: 60,
+    enabled: true,
+  },
 ];
 
 export const BURNED_ROAD_ACTIONS: LocationPrimaryAction[] = [