feat!: client storage is read-only, storage.save and storage.delete removed

test/RudderClient.test.ts

@@ -117,7 +117,7 @@ describe('transport error mapping', () => {
     vi.stubGlobal('fetch', vi.fn().mockResolvedValue(
       new Response(null, { status: 204, statusText: 'No Content' }),
     ));
-    const result = await client.storage.save('t', '{}');
+    const result = await client.auth.linkWithGoogle('id-token');
     expect(result).toBeUndefined();
   });