style: apply dart formatting fixes across lib/ and test/

11 files had formatting inconsistencies that caused the
--set-exit-if-changed gate to fail. Automated formatting
via dart format now passes cleanly.

test/widget_test.dart

@@ -16,7 +16,13 @@ void main() {
     await tester.pump();
 
     expect(find.text('KRYZ Go!'), findsWidgets);
-    expect(find.widgetWithIcon(ElevatedButton, Icons.play_arrow_rounded), findsOneWidget);
-    expect(find.widgetWithIcon(ElevatedButton, Icons.stop_rounded), findsOneWidget);
+    expect(
+      find.widgetWithIcon(ElevatedButton, Icons.play_arrow_rounded),
+      findsOneWidget,
+    );
+    expect(
+      find.widgetWithIcon(ElevatedButton, Icons.stop_rounded),
+      findsOneWidget,
+    );
   });
 }