fix architecture and write new tests

.env.docker.production.generated

@@ -13,8 +13,8 @@ POSTGRES_HOST=postgres
 POSTGRES_PORT=5432
 POSTGRES_DB=rentaldrivego
 POSTGRES_USER=postgres
-POSTGRES_PASSWORD=change-me
-DATABASE_URL=postgresql://postgres:change-me@postgres:5432/rentaldrivego
+POSTGRES_PASSWORD=placeholder
+DATABASE_URL=postgresql://placeholder:placeholder@placeholder:5432/placeholder
 
 # Cache
 REDIS_URL=redis://redis:6379
@@ -38,7 +38,7 @@ ADMIN_URL=https://example.com/admin
 CORS_ORIGINS=https://example.com,https://www.example.com
 
 # Auth
-JWT_SECRET=replace-with-a-long-random-secret
+JWT_SECRET=placeholder
 JWT_EXPIRY=8h
 RENTER_JWT_EXPIRY=7d
 NODE_ENV=production
@@ -57,7 +57,7 @@ MAIL_HOST=smtp.gmail.com
 MAIL_PORT=587
 MAIL_SCHEME=smtp
 MAIL_USERNAME=your-smtp-user@example.com
-MAIL_PASSWORD=replace-with-an-app-password
+MAIL_PASSWORD=placeholder
 MAIL_FROM_ADDRESS=noreply@example.com
 MAIL_FROM_NAME=RentalDriveGo
 MAIL_REPLY_TO_ADDRESS=support@example.com