✨ 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/swaggerOptions.ts

@@ -1,6 +1,6 @@
 import { fileURLToPath } from "node:url";
 import path from "path";
-import { configs } from "./app/errors/configs";
+import { configs } from "./app/configs";
 import { accountSwaggerDocs } from "./app/modules/account/account.swagger";
 import { orderSwaggerDocs } from "./app/modules/order/order.swagger";
 import { planSwaggerDocs } from "./app/modules/plan/plan.swagger";