feat(reputation): translate rank labels to English

Translates the six REPUTATION_RANKS labels in reputation-rank.ts
(Geachtet/Vertraut/Anerkannt/Bekannt/Geduldet/Fremder -> Esteemed/
Trusted/Recognized/Known/Tolerated/Stranger), per the glossary in
docs/superpowers/specs/2026-08-21-english-game-content-foundation-design.md
section 4. Keys and thresholds are unchanged.

Also updates reputation.service.spec.ts and reputation.controller.spec.ts,
which asserted the German rankLabel value returned by
resolveReputationRank() via the service/controller layer.

apps/api/src/reputation/reputation-rank.spec.ts

@@ -4,7 +4,7 @@ describe('resolveReputationRank', () => {
   it('resolves 0 reputation to Stranger with a next threshold of 100', () => {
     expect(resolveReputationRank(0)).toEqual({
       key: 'STRANGER',
-      label: 'Fremder',
+      label: 'Stranger',
       threshold: 0,
       nextThreshold: 100,
     });

apps/api/src/reputation/reputation-rank.ts

@@ -5,19 +5,19 @@ export interface ReputationRankInfo {
   nextThreshold: number | null;
 }
 
-// Verbatim thresholds from spec §10, German labels for the German-language UI.
+// Verbatim thresholds from spec §10, English labels for the English-language UI.
 // Sorted descending: the first entry whose threshold <= reputation wins.
 const REPUTATION_RANKS: ReadonlyArray<{
   threshold: number;
   key: string;
   label: string;
 }> = [
-  { threshold: 1200, key: 'ESTEEMED', label: 'Geachtet' },
-  { threshold: 800, key: 'TRUSTED', label: 'Vertraut' },
-  { threshold: 500, key: 'RECOGNIZED', label: 'Anerkannt' },
-  { threshold: 250, key: 'KNOWN', label: 'Bekannt' },
-  { threshold: 100, key: 'TOLERATED', label: 'Geduldet' },
-  { threshold: 0, key: 'STRANGER', label: 'Fremder' },
+  { threshold: 1200, key: 'ESTEEMED', label: 'Esteemed' },
+  { threshold: 800, key: 'TRUSTED', label: 'Trusted' },
+  { threshold: 500, key: 'RECOGNIZED', label: 'Recognized' },
+  { threshold: 250, key: 'KNOWN', label: 'Known' },
+  { threshold: 100, key: 'TOLERATED', label: 'Tolerated' },
+  { threshold: 0, key: 'STRANGER', label: 'Stranger' },
 ];
 
 export function resolveReputationRank(reputation: number): ReputationRankInfo {

apps/api/src/reputation/reputation.controller.spec.ts

@@ -36,7 +36,7 @@ describe('ReputationController', () => {
         factionName: 'Grenzwacht',
         reputation: 40,
         rank: 'STRANGER',
-        rankLabel: 'Fremder',
+        rankLabel: 'Stranger',
         nextThreshold: 100,
       },
     ];

apps/api/src/reputation/reputation.service.spec.ts

@@ -315,7 +315,7 @@ describe('ReputationService', () => {
           factionName: 'Grenzwacht',
           reputation: 0,
           rank: 'STRANGER',
-          rankLabel: 'Fremder',
+          rankLabel: 'Stranger',
           nextThreshold: 100,
         },
       ]);
@@ -333,7 +333,7 @@ describe('ReputationService', () => {
         factionName: 'Grenzwacht',
         reputation: 300,
         rank: 'KNOWN',
-        rankLabel: 'Bekannt',
+        rankLabel: 'Known',
         nextThreshold: 500,
       });
     });