fix: translate the last five German fixture strings found by the final review's re-review

Fixes 5 residual findings from the re-review of Playable Slice 0.6.6's
whole-branch review: two twice-hit spec files still carried invented
or seeded German fixture values (reputation-display faction name,
inventory-detail-panel item description and item name), a world store
fixture still used a German location description, and a dev comment
in reputation-content.ts referenced a faction name that no longer
exists in the code. All are literal string substitutions using
already-translated canon English text; no keys, ids, or logic changed.

apps/api/src/database/seeds/reputation-content.ts

@@ -9,9 +9,9 @@ export interface SeedReputationFaction {
   enabled: boolean;
 }
 
-// Only Grenzwacht is seeded and usable in Slice 0.6.5 (spec §8). Dämmerjäger
-// ('dusk-hunters') and Letzte Wacht ('last-watch') are future-region keys,
-// intentionally not seeded yet.
+// Only the Border Watch (Grenzwacht in the spec) is seeded and usable in
+// Slice 0.6.5 (spec §8). Dämmerjäger ('dusk-hunters') and Letzte Wacht
+// ('last-watch') are future-region keys, intentionally not seeded yet.
 export const REPUTATION_FACTIONS: SeedReputationFaction[] = [
   {
     id: BORDER_GUARD_FACTION_ID,