initial commit

src/app.module.ts

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+import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
+import { MongooseModule } from '@nestjs/mongoose';
+import { ConfigService } from '@nestjs/config';
+import { CommonModule } from './common/common.module';
+import { RequestIdMiddleware } from './common/middleware/request-id.middleware';
+import { AppConfigModule } from './config/config.module';
+import { AuthModule } from './auth/auth.module';
+import { UsersModule } from './users/users.module';
+import { AuditModule } from './audit/audit.module';
+import { RateLimitModule } from './rate-limit/rate-limit.module';
+import { LoggingModule } from './logging/logging.module';
+import { ProvidersModule } from './providers/providers.module';
+import { InquiryModule } from './inquiry/inquiry.module';
+import { DatabaseSeederModule } from './database/database-seeder.module';
+
+/**
+ * Root application module — wires all feature and infrastructure modules.
+ */
+@Module({
+  imports: [
+    AppConfigModule,
+    CommonModule,
+    AuditModule,
+    MongooseModule.forRootAsync({
+      inject: [ConfigService],
+      useFactory: (config: ConfigService) => ({
+        uri: config.get<string>('mongodb.uri'),
+      }),
+    }),
+    RateLimitModule,
+    LoggingModule,
+    AuthModule,
+    UsersModule,
+    DatabaseSeederModule,
+    ProvidersModule,
+    InquiryModule,
+  ],
+})
+export class AppModule implements NestModule {
+  configure(consumer: MiddlewareConsumer): void {
+    consumer.apply(RequestIdMiddleware).forRoutes('*');
+  }
+}