fix(tests): apply ruff format after rebase resolution

The collection_name plumbing rebase produced a few unformatted blocks
in test_mcp_server.py and test_searcher.py; bringing them in line with
the 0.4.x CI pin so test-windows / lint stay green.

tests/test_mcp_server.py

@@ -523,9 +523,9 @@ class TestWriteTools:
 
         assert result1["success"] is True
         assert result2["success"] is True
-        assert result1["drawer_id"] != result2["drawer_id"], (
-            "Documents with shared header but different content must have distinct drawer IDs"
-        )
+        assert (
+            result1["drawer_id"] != result2["drawer_id"]
+        ), "Documents with shared header but different content must have distinct drawer IDs"
 
     def test_delete_drawer(self, monkeypatch, config, palace_path, seeded_collection, kg):
         _patch_mcp_server(monkeypatch, config, kg)