refactor: Improve type inference and error handling in various services and tests

src/services/db/admin.db.ts

@@ -395,7 +395,7 @@ export class AdminRepository {
     action: string;
     displayText: string;
     icon?: string | null;
-    details?: Record<string, any> | null; 
+    details?: Record<string, unknown> | null; 
   }, logger: Logger): Promise<void> {
     const { userId, action, displayText, icon, details } = logData;
     try {