Revert "Fix SDK typecheck: add type declaration for twenty-sdk/generated"

This reverts commit bf3f606ad1.

packages/twenty-sdk/src/app-seeds/rich-app/__integration__/app-build/app-build.integration.spec.ts

@@ -1,4 +1,4 @@
-import { readdir, readFile, rm } from 'node:fs/promises';
+import { readdir, rm } from 'node:fs/promises';
 import { join } from 'path';
 
 import { appBuild } from '@/cli/public-operations/app-build';
@@ -43,24 +43,4 @@ describe('rich-app app:build', () => {
 
     expect(functionFiles.length).toBeGreaterThan(0);
   });
-
-  // app:build only creates client stubs (empty CoreApiClient / MetadataApiClient)
-  // because it doesn't sync with the server or generate the real API client.
-  // Logic functions that use CoreApiClient will get an empty class at runtime.
-  // When this is fixed, update this test to assert the client IS fully generated.
-  // See: https://github.com/twentyhq/twenty/pull/18460
-  it('should only produce client stubs (not a fully generated CoreApiClient)', async () => {
-    const clientIndexPath = join(
-      APP_PATH,
-      'node_modules',
-      'twenty-sdk',
-      GENERATED_DIR,
-      'core',
-      'index.ts',
-    );
-
-    const content = await readFile(clientIndexPath, 'utf-8');
-
-    expect(content).toBe('export class CoreApiClient {}\n');
-  });
 });

packages/twenty-sdk/src/twenty-sdk-generated.d.ts

@@ -1,10 +0,0 @@
-// Type stubs for the generated API client module.
-// At build time, esbuild resolves twenty-sdk/generated to the actual
-// generated client (or stubs) in the app's node_modules.
-declare module 'twenty-sdk/generated' {
-  export class CoreApiClient {
-    query<R>(request: R): Promise<unknown>;
-    mutation<R>(request: R): Promise<unknown>;
-  }
-  export class MetadataApiClient {}
-}