feat: generate order number (#69)

Добавил генерацию номера заказа при создании

Co-authored-by: RustamRu <kagapov.rustam@gmail.com>
Reviewed-on: #69
Reviewed-by: Primakov Alexandr Alexandrovich <primakovpro@gmail.com>

package.json

@@ -39,6 +39,7 @@
     "jsonwebtoken": "^9.0.2",
     "mongodb": "^6.12.0",
     "mongoose": "^8.9.2",
+    "mongoose-sequence": "^6.0.1",
     "morgan": "^1.10.0",
     "pbkdf2-password": "^1.2.1",
     "rotating-file-stream": "^3.2.5",