Migrate branding spec to deployConfig + transformRemoteToLocal

Remove transformConfig, set deployConfig (configWithoutFirstClassFields
pass-through) and transformRemoteToLocal directly (app_handle → handle).
transformLocalToRemote is now undefined.

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

Author: ryancbahan

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

@@ -1,25 +1,10 @@
 import spec from './app_config_branding.js'
-import {placeholderAppConfiguration} from '../../app/app.test-data.js'
 import {describe, expect, test} from 'vitest'
 
 describe('branding', () => {
   describe('transform', () => {
-    test('should return the transformed object', () => {
-      // Given
-      const object = {
-        name: 'my-app',
-        handle: 'my-app-handle',
-      }
-      const appConfigSpec = spec
-
-      // When
-      const result = appConfigSpec.transformLocalToRemote!(object, placeholderAppConfiguration)
-
-      // Then
-      expect(result).toMatchObject({
-        name: 'my-app',
-        app_handle: 'my-app-handle',
-      })
+    test('transformLocalToRemote should be undefined', () => {
+      expect(spec.transformLocalToRemote).toBeUndefined()
     })
   })
 

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

@@ -1,4 +1,4 @@
-import {TransformationConfig, createConfigExtensionSpecification} from '../specification.js'
+import {configWithoutFirstClassFields, createConfigExtensionSpecification} from '../specification.js'
 import {BaseSchemaWithoutHandle} from '../schemas.js'
 import {zod} from '@shopify/cli-kit/node/schema'
 
@@ -13,17 +13,16 @@ const BrandingSchema = BaseSchemaWithoutHandle.extend({
     .optional(),
 })
 
-const BrandingTransformConfig: TransformationConfig = {
-  name: 'name',
-  app_handle: 'handle',
-}
-
 export const BrandingSpecIdentifier = 'branding'
 
 const appBrandingSpec = createConfigExtensionSpecification({
   identifier: BrandingSpecIdentifier,
   schema: BrandingSchema,
-  transformConfig: BrandingTransformConfig,
+  deployConfig: async (config) => configWithoutFirstClassFields(config),
+  transformRemoteToLocal: (content: object) => ({
+    name: (content as {name?: string}).name,
+    handle: (content as {app_handle?: string}).app_handle,
+  }),
 })
 
 export default appBrandingSpec