✨ feat(order): add customer email and optional fields, update order creation flow

- Added `customerEmail` field to Order model.
- Made `customerNote` optional in the Order model.
- Updated order creation logic to send a tracking email.
- Updated order validation to handle optional fields.
- Refactored configurations import path from `errors/configs` to `configs`.
- Minor modifications across account and order services for consistency.

src/app/middlewares/auth.ts

@@ -1,5 +1,5 @@
 import { NextFunction, Request, Response } from "express";
-import { configs } from "../errors/configs";
+import { configs } from "../configs";
 import { AppError } from "../utils/app_error";
 import { jwtHelpers, JwtPayloadType } from "../utils/JWT";