test(code-review): isolate fallback cache

apps/api/tests/test_local_code_review_cloud_fallback.py

@@ -33,6 +33,14 @@ async def _noop_save(*args: Any, **kwargs: Any) -> None:
     return None
 
 
+@pytest.fixture(autouse=True)
+def disable_review_cache(monkeypatch: pytest.MonkeyPatch) -> None:
+    async def _no_redis() -> None:
+        return None
+
+    monkeypatch.setattr("src.core.redis_client.get_redis", _no_redis)
+
+
 def _fake_ollama_order(_workload_type: str) -> tuple[SimpleNamespace, ...]:
     return (
         SimpleNamespace(url="http://gcp-a:11434", provider_name="ollama_gcp_a"),