Fix/middleware folder

backend/src/app.module.ts

@@ -1,3 +1,4 @@
+import { Module, MiddlewareConsumer, NestModule } from '@nestjs/common';
 import { Module, NestModule, MiddlewareConsumer, RequestMethod } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { ConfigModule, ConfigService } from '@nestjs/config';
@@ -16,16 +17,21 @@ import { PuzzlesModule } from './puzzles/puzzles.module';
 import { QuestsModule } from './quests/quests.module';
 import { StreakModule } from './streak/strerak.module';
 import { CategoriesModule } from './categories/categories.module';
+import { TransactionMiddleware } from './middleware/transaction/transaction.middleware';
+import { TransactionLogger } from './middleware/transaction/transaction.logger';
+import { CompressionMiddleware } from './middleware/compression/compression.middleware';
+import { IdempotencyMiddleware } from './middleware/idempotency/idempotency.middleware';
+import { SecurityHeadersMiddleware } from './middleware/security/security-headers.middleware';
+
+
+
 import { JwtAuthModule, JwtAuthMiddleware } from './auth/middleware/jwt-auth.module';
 import { REDIS_CLIENT } from './redis/redis.constants';
 import jwtConfig from './auth/authConfig/jwt.config';
 import { UsersService } from './users/providers/users.service';
 import { GeolocationMiddleware } from './common/middleware/geolocation.middleware';
 import { HealthModule } from './health/health.module';
 
-// const ENV = process.env.NODE_ENV;
-// console.log('NODE_ENV:', process.env.NODE_ENV);
-// console.log('ENV:', ENV);
 
 @Module({
   imports: [
@@ -87,7 +93,6 @@ import { HealthModule } from './health/health.module';
     CommonModule,
     RedisModule,
     BlockchainModule,
-    ProgressModule,
     CategoriesModule,
     // Register the custom JWT Auth Middleware module
     JwtAuthModule.registerAsync({
@@ -104,9 +109,19 @@ import { HealthModule } from './health/health.module';
     HealthModule,
   ],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [AppService, TransactionLogger],
 })
 export class AppModule implements NestModule {
+  configure(consumer: MiddlewareConsumer) {
+    // Apply transaction middleware globally
+    consumer.apply(TransactionMiddleware).forRoutes('*');
+
+
+    consumer.apply(CompressionMiddleware).forRoutes('*');
+        consumer.apply(IdempotencyMiddleware).forRoutes('*');
+            consumer.apply(SecurityHeadersMiddleware).forRoutes('*');
+
+
   /**
    * Apply the JWT Authentication Middleware to all routes except public ones.
    */

backend/src/common/controllers/security.controller.ts

@@ -0,0 +1,14 @@
+import { Controller, Get, Res } from '@nestjs/common';
+import { Response } from 'express';
+
+@Controller('.well-known')
+export class SecurityController {
+  @Get('security.txt')
+  getSecurityTxt(@Res() res: Response) {
+    res.type('text/plain').send(
+      `Contact: security@yourdomain.com
+Policy: https://yourdomain.com/security-policy
+Acknowledgments: https://yourdomain.com/security-acknowledgments`
+    );
+  }
+}

package.json

@@ -33,6 +33,7 @@
     "@nestjs/common": "^11.1.14",
     "@nestjs/core": "^11.1.14",
     "@tanstack/react-query": "^5.90.21",
+    "compression": "^1.8.1",
     "framer-motion": "^12.34.3",
     "minimatch": "^10.1.1",
     "reflect-metadata": "^0.2.2",