Stabilize paired-room orchestration and Codex app-server flow

src/group-queue.test.ts

@@ -166,6 +166,29 @@ describe('GroupQueue', () => {
     expect(callCount).toBe(3);
   });
 
+  it('does not bypass retry backoff when new messages arrive', async () => {
+    let callCount = 0;
+
+    const processMessages = vi.fn(async () => {
+      callCount++;
+      return false;
+    });
+
+    queue.setProcessMessagesFn(processMessages);
+    queue.enqueueMessageCheck('group1@g.us');
+
+    await vi.advanceTimersByTimeAsync(10);
+    expect(callCount).toBe(1);
+
+    queue.enqueueMessageCheck('group1@g.us');
+    await vi.advanceTimersByTimeAsync(1000);
+    expect(callCount).toBe(1);
+
+    await vi.advanceTimersByTimeAsync(4000);
+    await vi.advanceTimersByTimeAsync(10);
+    expect(callCount).toBe(2);
+  });
+
   // --- Shutdown prevents new enqueues ---
 
   it('prevents new enqueues after shutdown', async () => {