Migrate point_of_sale spec to deployConfig + transformRemoteToLocal

Remove transformConfig, set deployConfig (configWithoutFirstClassFields
pass-through) and transformRemoteToLocal directly. transformLocalToRemote
is now undefined — TOML shape is sent directly to the server.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ryancbahan

packages/app/src/cli/models/extensions/specifications/app_config_point_of_sale.test.ts

@@ -1,25 +1,10 @@
 import spec from './app_config_point_of_sale.js'
-import {placeholderAppConfiguration} from '../../app/app.test-data.js'
 import {describe, expect, test} from 'vitest'
 
 describe('app_cofig_point_of_sale', () => {
-  describe('transform', () => {
-    test('should return the transformed object', () => {
-      // Given
-      const object = {
-        pos: {
-          embedded: true,
-        },
-      }
-      const appConfigSpec = spec
-
-      // When
-      const result = appConfigSpec.transformLocalToRemote!(object, placeholderAppConfiguration)
-
-      // Then
-      expect(result).toMatchObject({
-        embedded: true,
-      })
+  describe('transformLocalToRemote', () => {
+    test('should be undefined since deployConfig is used instead', () => {
+      expect(spec.transformLocalToRemote).toBeUndefined()
     })
   })
 

packages/app/src/cli/models/extensions/specifications/app_config_point_of_sale.ts

@@ -1,4 +1,4 @@
-import {createConfigExtensionSpecification, TransformationConfig} from '../specification.js'
+import {createConfigExtensionSpecification, configWithoutFirstClassFields} from '../specification.js'
 import {BaseSchemaWithoutHandle} from '../schemas.js'
 import {zod} from '@shopify/cli-kit/node/schema'
 
@@ -12,14 +12,11 @@ const PosConfigurationSchema = BaseSchemaWithoutHandle.extend({
 
 export const PosSpecIdentifier = 'point_of_sale'
 
-const PosTransformConfig: TransformationConfig = {
-  embedded: 'pos.embedded',
-}
-
 const appPOSSpec = createConfigExtensionSpecification({
   identifier: PosSpecIdentifier,
   schema: PosConfigurationSchema,
-  transformConfig: PosTransformConfig,
+  deployConfig: async (config) => configWithoutFirstClassFields(config),
+  transformRemoteToLocal: (content: object) => ({pos: {embedded: (content as {embedded: boolean}).embedded}}),
 })
 
 export default appPOSSpec