Fixing errors and danger zone

tests/test_scope_guide.py

@@ -275,7 +275,7 @@ async def test_scopes_page_renders_objective_attachment_point_thread(
     assert resp.status_code == 200
     body = resp.text
     # The attachment point's thread spec wins over ScopeInfo.objective_thread_pitch.
-    assert "M44×0.5" in body
+    assert "M44.0×0.5" in body
     assert "M52x0.75" not in body