fix: close out remaining German player-facing text across web and API tests

Repo-wide grep sweep (apps/web/src, apps/api/src) for leftover German
content strings missed by Tasks 1-9, mostly in spec fixtures/assertions
that mirror already-translated seed content (monster/item names, POI
titles and action labels, location names/descriptions) plus a few real
source-file gaps:

- inventory-detail-panel.component.ts: STAT_LABELS (Waffenschaden,
  Angriff, Leben, Rüstung) were never translated by Task 6; now match
  the identical English labels already used in inventory-page.component.html.
- app-shell.component.html: aria-label="Spielinhalt" -> "Game content"
  (this file was outside every prior task's file list).
- location-interaction-panel.component.spec.ts: dead NPC-quote fixture
  translated to match the real wounded-scout POI text.

Code comments referencing German source-spec section titles or
not-yet-seeded faction names, and inline calculation-documentation
comments, are left as-is per the source spec's scope (dev-facing
comments may stay German).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ACkMEDYiwtcfchqKkiUJNX

apps/web/src/app/features/inventory/inventory-page.component.spec.ts

@@ -17,7 +17,7 @@ const inventory: InventoryResponse = {
       item: {
         key: 'worn-short-sword',
         name: 'Abgenutztes Kurzschwert',
-        description: 'Beschreibung des Gegenstands.',
+        description: 'Item description.',
         rarity: 'COMMON',
         equipmentSlot: 'WEAPON',
         weaponDamage: 8,
@@ -33,8 +33,8 @@ const inventory: InventoryResponse = {
       equipped: false,
       item: {
         key: 'bandit-blade',
-        name: 'Räuberklinge',
-        description: 'Beschreibung des Gegenstands.',
+        name: 'Bandit Blade',
+        description: 'Item description.',
         rarity: 'COMMON',
         equipmentSlot: 'WEAPON',
         weaponDamage: 11,
@@ -70,7 +70,7 @@ const character: CharacterResponse = {
   attack: 6,
   hpRegenPerSecond: 1,
   hpRegenSince: null,
-  currentLocation: { id: 'loc-1', key: 'south-gate', name: 'Südtor' },
+  currentLocation: { id: 'loc-1', key: 'south-gate', name: 'South Gate' },
 };
 
 interface SetupOptions {
@@ -176,8 +176,8 @@ describe('InventoryPageComponent', () => {
           equipped: true,
           item: {
             key: 'iron-helm',
-            name: 'Eiserner Helm',
-            description: 'Beschreibung des Gegenstands.',
+            name: 'Iron Helm',
+            description: 'Item description.',
             rarity: 'COMMON',
             equipmentSlot: 'HEAD',
             weaponDamage: 0,