chore: Move customer + customer group integration tests and fixes issues (#7577)

* chore: Move customer + customer group and fixes issues

* remove /customer sendpoint

packages/modules/customer/src/models/customer-group.ts

@@ -1,21 +1,33 @@
 import { DAL } from "@medusajs/types"
-import { DALUtils, Searchable, generateEntityId } from "@medusajs/utils"
+import {
+  DALUtils,
+  Searchable,
+  createPsqlIndexStatementHelper,
+  generateEntityId,
+} from "@medusajs/utils"
 import {
   BeforeCreate,
+  Collection,
   Entity,
+  Filter,
+  ManyToMany,
   OnInit,
   OptionalProps,
   PrimaryKey,
   Property,
-  ManyToMany,
-  Collection,
-  Filter,
 } from "@mikro-orm/core"
 import Customer from "./customer"
 import CustomerGroupCustomer from "./customer-group-customer"
 
 type OptionalGroupProps = DAL.SoftDeletableEntityDateColumns // TODO: To be revisited when more clear
 
+const CustomerGroupUniqueName = createPsqlIndexStatementHelper({
+  tableName: "customer_group",
+  columns: ["name"],
+  unique: true,
+  where: "deleted_at IS NULL",
+})
+
 @Entity({ tableName: "customer_group" })
 @Filter(DALUtils.mikroOrmSoftDeletableFilterOptions)
 export default class CustomerGroup {
@@ -25,8 +37,9 @@ export default class CustomerGroup {
   id!: string
 
   @Searchable()
-  @Property({ columnType: "text", nullable: true })
-  name: string | null = null
+  @CustomerGroupUniqueName.MikroORMIndex()
+  @Property({ columnType: "text" })
+  name: string
 
   @ManyToMany({
     entity: () => Customer,