M29a: ruff format the M29 test

One string in the new stylesheet assertion escaped its own quotes where ruff
would rather it changed quote style. Formatting was checked before the tests
were appended and not after, which is the whole of it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: martex-dev

tests/test_station.py

@@ -1016,7 +1016,7 @@ def test_the_map_carries_no_writing_until_it_is_asked_for(tmp_path: Path) -> Non
         assert rule in style, rule
     for rule in (
         ".annotated #cards, .annotated #exits { opacity:1; }",
-        ".annotated #labels text, #labels text[data-kind=\"stencil\"] { opacity:1; }",
+        '.annotated #labels text, #labels text[data-kind="stencil"] { opacity:1; }',
         ".annotated .roster, .annotated .hud-tl, .annotated .hud-bl { opacity:1; }",
     ):
         assert rule in style, rule