feat: implement audit logging system with service, controller, and interceptor to track user actions across core services

src/audit/audit.module.ts

@@ -0,0 +1,11 @@
+import { Global, Module } from '@nestjs/common';
+import { AuditService } from './audit.service';
+import { AuditController } from './audit.controller';
+
+@Global()
+@Module({
+  providers: [AuditService],
+  controllers: [AuditController],
+  exports: [AuditService],
+})
+export class AuditModule {}