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-detail-panel.component.spec.ts

@@ -10,7 +10,7 @@ const wornSword: InventoryItem = {
   item: {
     key: 'worn-short-sword',
     name: 'Abgenutztes Kurzschwert',
-    description: 'Beschreibung des Gegenstands.',
+    description: 'Item description.',
     rarity: 'COMMON',
     equipmentSlot: 'WEAPON',
     weaponDamage: 8,
@@ -27,8 +27,8 @@ const banditBlade: InventoryItem = {
   equipped: false,
   item: {
     key: 'bandit-blade',
-    name: 'Räuberklinge',
-    description: 'Beschreibung des Gegenstands.',
+    name: 'Bandit Blade',
+    description: 'Item description.',
     rarity: 'COMMON',
     equipmentSlot: 'WEAPON',
     weaponDamage: 11,
@@ -46,7 +46,7 @@ const ashPelt: InventoryItem = {
   item: {
     key: 'ash-pelt',
     name: 'Aschenfell',
-    description: 'Beschreibung des Gegenstands.',
+    description: 'Item description.',
     rarity: 'COMMON',
     equipmentSlot: null,
     weaponDamage: 0,