chore: remove unused api key type (#5395)

Integrated into release/v3.8.42

src/types/apiKey.ts

@@ -1,12 +0,0 @@
-/**
- * API key — authentication credential for accessing the OmniRoute proxy.
- */
-export interface ApiKey {
-  id: string;
-  key: string;
-  label: string;
-  isActive: boolean;
-  createdAt: string;
-  lastUsedAt?: string;
-  usageCount: number;
-}

src/types/index.ts

@@ -6,7 +6,6 @@
  */
 
 export type { ModelCooldownErrorPayload } from "./provider";
-export type { ApiKey } from "./apiKey";
 export type { UsageEntry, UsageStats, ProviderUsageStats, ModelUsageStats, CallLog } from "./usage";
 export type { DatabaseSettings } from "./databaseSettings";
 export { DEFAULT_DATABASE_SETTINGS } from "./databaseSettings";