refactor: reorganize imports and improve code formatting for readability

backend/tests/test_queue.py

@@ -74,7 +74,9 @@ def test_generic_requeue_respects_retry_cap(monkeypatch: pytest.MonkeyPatch, att
         assert requeued.attempts == attempts + 1
 
 
-def test_dequeue_task_tolerates_legacy_payload_without_envelope(monkeypatch: pytest.MonkeyPatch) -> None:
+def test_dequeue_task_tolerates_legacy_payload_without_envelope(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
     fake = _FakeRedis()
 
     def _fake_redis(*, redis_url: str | None = None) -> _FakeRedis:

backend/tests/test_webhook_dispatch.py

@@ -127,7 +127,9 @@ class _FakeQueuedItem:
         self.attempts = attempts
 
 
-def _patch_dequeue(monkeypatch: pytest.MonkeyPatch, items: list[QueuedInboundDelivery | None]) -> None:
+def _patch_dequeue(
+    monkeypatch: pytest.MonkeyPatch, items: list[QueuedInboundDelivery | None]
+) -> None:
     def _dequeue() -> QueuedInboundDelivery | None:
         if not items:
             return None
@@ -137,7 +139,9 @@ def _patch_dequeue(monkeypatch: pytest.MonkeyPatch, items: list[QueuedInboundDel
 
 
 @pytest.mark.asyncio
-async def test_dispatch_flush_processes_items_and_throttles(monkeypatch: pytest.MonkeyPatch) -> None:
+async def test_dispatch_flush_processes_items_and_throttles(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
     items: list[QueuedInboundDelivery | None] = [
         _FakeQueuedItem(),
         _FakeQueuedItem(),