style(tests): apply ruff format to test_tools_integrations.py

Ruff Lint CI on `7449c43` flagged two function signatures in
`test_tools_integrations.py` that had been wrapped to multi-line in
the rework commit `48a4f7b` but fit on a single line under the
project's 88-char width. `ruff format` collapses them — pure
mechanical, no behavior change. The other 23 changed Python files in
the PR are already format-clean.

76 unit tests still pass locally.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Patch76

tests/src/unit/test_tools_integrations.py

@@ -620,9 +620,7 @@ async def test_flow_path_multi_subentity_utility_meter(self, tools, mock_client)
         }
         assert result["entry_id"] == "um_entry"
 
-    async def test_flow_path_entity_not_in_registry_raises(
-        self, tools, mock_client
-    ):
+    async def test_flow_path_entity_not_in_registry_raises(self, tools, mock_client):
         """Path 2 not_in_registry: target FLOW entity_id confirmed absent
         from the entity registry → raises ENTITY_NOT_FOUND (entity-shape
         target). Matches the existing bare_id_not_supported branch and
@@ -699,9 +697,7 @@ async def test_flow_path_yaml_helper_no_config_entry(self, tools, mock_client):
         assert err["error"]["code"] == "RESOURCE_NOT_FOUND"
         assert "storage-based" in err["error"]["message"]
 
-    async def test_flow_path_entry_not_found_at_delete_raises(
-        self, tools, mock_client
-    ):
+    async def test_flow_path_entry_not_found_at_delete_raises(self, tools, mock_client):
         """Path 2 TOCTOU: entry_id resolved at step 1 but already deleted
         before step 3 reaches HA → raises RESOURCE_NOT_FOUND. Silent
         success would hide the race from a wrapper that acted on the