fix(content): stop promising rewards the burned road can no longer drop

The location view's "Mögliche Belohnungen" preview listed Silber and
Erfahrung. This slice made both false:

- Experience no longer exists as a concept (spec 1).
- Every monster seeded on this road now rolls silverMin/silverMax = 0
  (design R7), so a kill yields no silver. Silver reaches the player
  through turn-ins instead.

The list's own comment states the rule it was breaking: the view may not
promise a drop the roll does not guarantee (spec 8). Equipment and
material stay -- the loot tables still back both.

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

apps/api/src/database/seeds/local-location.content.ts

@@ -121,13 +121,17 @@ export const BURNED_ROAD_LOCAL_CONTENT: LocalLocationContent = {
       enabled: true,
     },
   ],
-  // Only categories the loot tables on this road actually back: silver and
-  // experience from every kill, gear from the raiders, pelts from the beasts.
-  // Named items stay out — the view may not promise a drop the roll does not
-  // guarantee (spec §8, "Mögliche Belohnungen").
+  // Only categories the loot tables on this road actually back: gear from the
+  // raiders, pelts from the beasts. Named items stay out — the view may not
+  // promise a drop the roll does not guarantee (spec §8, "Mögliche
+  // Belohnungen").
+  //
+  // Silver and experience were both dropped from this preview by slice 0.6.5.
+  // Experience no longer exists as a concept at all (spec §1), and every
+  // monster seeded on this road now rolls silverMin/silverMax = 0 (design R7),
+  // so a kill here yields neither. Silver reaches the player through turn-ins
+  // instead. Leaving either entry in place would break this list's own rule.
   localRewardPreview: [
-    { key: 'silver', label: 'Silber', iconKey: 'silver' },
-    { key: 'experience', label: 'Erfahrung', iconKey: 'experience' },
     { key: 'equipment', label: 'Ausrüstung', iconKey: 'equipment' },
     { key: 'material', label: 'Material', iconKey: 'material' },
   ],