chore(docs): clean comment format

tests/conftest.py

@@ -4,22 +4,15 @@ from unittest.mock import MagicMock
 
 
 def make_mock_engine(select_rows: list[tuple] | None = None):
-    """Return a mock SQLAlchemy engine.
-
-    Args:
-        select_rows: Rows to return from *connect()* (SELECT queries).
-            Defaults to an empty list.
-    """
+    """Return a mock SQLAlchemy engine."""
     select_rows = select_rows or []
 
     engine = MagicMock()
 
-    # engine.begin() context manager → conn for DDL / writes
     write_conn = MagicMock()
     engine.begin.return_value.__enter__ = MagicMock(return_value=write_conn)
     engine.begin.return_value.__exit__ = MagicMock(return_value=False)
 
-    # engine.connect() context manager → conn for SELECTs
     read_conn = MagicMock()
     read_conn.execute.return_value = iter(select_rows)
     engine.connect.return_value.__enter__ = MagicMock(return_value=read_conn)