fix: parse verify credentials user id

src/lib/twitter-client-users.ts

@@ -205,11 +205,15 @@ export function withUsers<TBase extends AbstractConstructor<TwitterClientBase>>(
               ? data.user_id
               : typeof data?.user_id_str === 'string'
                 ? data.user_id_str
-                : typeof data?.user?.id_str === 'string'
+                : typeof data?.id_str === 'string'
-                  ? data.user.id_str
+                  ? data.id_str
-                  : typeof data?.user?.id === 'string'
+                  : typeof data?.id === 'string'
-                    ? data.user.id
+                    ? data.id
-                    : null;
+                    : typeof data?.user?.id_str === 'string'
+                      ? data.user.id_str
+                      : typeof data?.user?.id === 'string'
+                        ? data.user.id
+                        : null;
 
           if (username && userId) {
             this.clientUserId = userId;

tests/twitter-client.current-user.test.ts

@@ -107,6 +107,24 @@ describe('TwitterClient getCurrentUser', () => {
     expect(mockFetch).toHaveBeenCalledTimes(2);
   });
 
+  it('reads top-level id_str from verify_credentials responses', async () => {
+    mockFetch.mockResolvedValue({
+      ok: true,
+      status: 200,
+      json: async () => ({
+        id_str: '12345',
+        screen_name: 'tester',
+        name: 'Test User',
+      }),
+    });
+
+    const client = new TwitterClient({ relayBaseUrl: testRelayBaseUrl });
+    const result = await client.getCurrentUser();
+
+    expect(result.success).toBe(true);
+    expect(result.user).toEqual({ id: '12345', username: 'tester', name: 'Test User' });
+  });
+
   it('continues on fetch errors and still succeeds via later API endpoint', async () => {
     mockFetch
       .mockRejectedValueOnce(new Error('boom'))