feat: 后端初始化

supplied-service/netlify/functions/order-create.ts

@@ -0,0 +1,11 @@
+import type { Context } from '@netlify/functions'
+import { guardMethod } from '../utils/method.js'
+import { ok } from '../utils/http.js'
+import { withErrorBoundary } from '../utils/handler.js'
+
+export default withErrorBoundary(async (request: Request, _context: Context) => {
+  const methodResponse = guardMethod(request, ['POST'])
+  if (methodResponse) return methodResponse
+
+  return ok({ message: 'order-create endpoint placeholder' })
+})