Format four files ruff had drifted from

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H7LwYgJfpkbLCTeiAf8U4A

backend/tests/api/routes/test_flows.py

@@ -118,9 +118,12 @@ def test_editing_does_not_deploy_until_published(
     ).json()
     assert saved["has_draft"] is True
     # Nothing is running yet, so the engine knows no nodes of this flow.
-    assert client.get(f"{PREFIX}/staged/state", headers=superuser_token_headers).json()[
-        "nodes"
-    ] == []
+    assert (
+        client.get(f"{PREFIX}/staged/state", headers=superuser_token_headers).json()[
+            "nodes"
+        ]
+        == []
+    )
 
     published = client.post(
         f"{PREFIX}/staged/publish",

backend/tests/api/routes/test_oauth.py

@@ -103,7 +103,9 @@ def test_a_wrong_verifier_is_refused(
     _, challenge = pkce()
     code = approve(client, superuser_token_headers, registered["client_id"], challenge)
 
-    response = exchange(client, registered["client_id"], code, secrets.token_urlsafe(48))
+    response = exchange(
+        client, registered["client_id"], code, secrets.token_urlsafe(48)
+    )
     assert response.status_code == 400
     assert response.json()["error"] == "invalid_grant"
 
@@ -207,9 +209,7 @@ def test_approving_needs_a_signed_in_user(client: TestClient) -> None:
 
 
 def test_an_unsupported_grant_says_so(client: TestClient) -> None:
-    response = client.post(
-        f"{PREFIX}/token", data={"grant_type": "client_credentials"}
-    )
+    response = client.post(f"{PREFIX}/token", data={"grant_type": "client_credentials"})
     assert response.status_code == 400
     assert response.json()["error"] == "unsupported_grant_type"
 
@@ -219,9 +219,16 @@ def test_everything_is_refused_while_mcp_is_off(
 ) -> None:
     monkeypatch.setattr(settings, "MCP_ENABLED", False)
 
-    assert client.post(f"{PREFIX}/register", json={"redirect_uris": [REDIRECT]}).status_code == 403
     assert (
-        client.post(f"{PREFIX}/token", data={"grant_type": "authorization_code"}).status_code
+        client.post(
+            f"{PREFIX}/register", json={"redirect_uris": [REDIRECT]}
+        ).status_code
+        == 403
+    )
+    assert (
+        client.post(
+            f"{PREFIX}/token", data={"grant_type": "authorization_code"}
+        ).status_code
         == 403
     )