first commit

src/modules/audit/audit.service.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@nestjs/common';
+import { AuditRepository } from './audit.repository';
+
+@Injectable()
+export class AuditService {
+  constructor(private readonly auditRepository: AuditRepository) {}
+
+  async logSuperAdminAction(
+    actorIdentifier: string,
+    action: string,
+    targetType: string,
+    targetId?: string,
+    metadata?: Record<string, unknown>,
+  ): Promise<void> {
+    await this.auditRepository.create({
+      actorType: 'superadmin',
+      actorIdentifier,
+      action,
+      targetType,
+      targetId,
+      metadata,
+    });
+  }
+}