fix: Tax region + rates clean up (#9279)

What
- Require `code` on Tax Rates
- Update dashboard to account for non-nullable code on Tax Rates

- Include `automatic_taxes` in API Route response

Closes CC-524 CC-525

packages/medusa/src/api/admin/regions/query-config.ts

@@ -5,6 +5,7 @@ export const defaultAdminRegionFields = [
   "created_at",
   "updated_at",
   "deleted_at",
+  "automatic_taxes",
   "metadata",
   "*countries",
 ]

packages/medusa/src/api/admin/regions/route.ts

@@ -1,14 +1,14 @@
-import {
-  AuthenticatedMedusaRequest,
-  MedusaResponse,
-} from "../../../types/routing"
 import { createRegionsWorkflow } from "@medusajs/core-flows"
+import { HttpTypes } from "@medusajs/framework/types"
 import {
   ContainerRegistrationKeys,
   remoteQueryObjectFromString,
 } from "@medusajs/framework/utils"
+import {
+  AuthenticatedMedusaRequest,
+  MedusaResponse,
+} from "../../../types/routing"
 import { refetchRegion } from "./helpers"
-import { HttpTypes } from "@medusajs/framework/types"
 
 export const GET = async (
   req: AuthenticatedMedusaRequest<HttpTypes.AdminRegionFilters>,

packages/medusa/src/api/admin/tax-rates/validators.ts

@@ -36,7 +36,7 @@ export const AdminCreateTaxRateRule = z.object({
 export type AdminCreateTaxRateType = z.infer<typeof AdminCreateTaxRate>
 export const AdminCreateTaxRate = z.object({
   rate: z.number().optional(),
-  code: z.string().optional(),
+  code: z.string(),
   rules: z.array(AdminCreateTaxRateRule).optional(),
   name: z.string(),
   is_default: z.boolean().optional(),
@@ -48,7 +48,7 @@ export const AdminCreateTaxRate = z.object({
 export type AdminUpdateTaxRateType = z.infer<typeof AdminUpdateTaxRate>
 export const AdminUpdateTaxRate = z.object({
   rate: z.number().optional(),
-  code: z.string().nullish(),
+  code: z.string().optional(),
   rules: z.array(AdminCreateTaxRateRule).optional(),
   name: z.string().optional(),
   is_default: z.boolean().optional(),

packages/medusa/src/api/admin/tax-regions/validators.ts

@@ -46,7 +46,7 @@ export const AdminCreateTaxRegion = z.object({
   default_tax_rate: z
     .object({
       rate: z.number().optional(),
-      code: z.string().optional(),
+      code: z.string(),
       name: z.string(),
       is_combinable: z.boolean().optional(),
       metadata: z.record(z.unknown()).nullish(),