feat(audit): register AuditLogController in AuditModule

src/audit/audit.module.ts

@@ -1,9 +1,11 @@
 import { Global, Module } from '@nestjs/common';
+import { AuditLogController } from './audit.controller';
 import { AuditService } from './audit.service';
 
 // Global: aproape fiecare modul de domeniu scrie audit; evitam importuri repetate.
 @Global()
 @Module({
+  controllers: [AuditLogController],
   providers: [AuditService],
   exports: [AuditService],
 })