wip(watch-ui): sauvegarde travail en cours lot UI (#176 #177)

lib/presentation/workout_execution_screen.dart

@@ -2849,6 +2849,17 @@ final class _CurrentStepPane extends StatelessWidget {
               ),
             ],
             const SizedBox(height: 4),
+            if (step.type == ExerciseStepType.reps) ...[
+              FilledButton.icon(
+                onPressed: onCompleteStep,
+                style: FilledButton.styleFrom(
+                  minimumSize: const Size.fromHeight(48),
+                ),
+                icon: const Icon(Icons.check),
+                label: const Text('Étape suivante'),
+              ),
+              const SizedBox(height: 8),
+            ],
             Row(
               children: [
                 Expanded(
@@ -2882,19 +2893,6 @@ final class _CurrentStepPane extends StatelessWidget {
                     ),
                   ],
                 ),
-                if (step.type == ExerciseStepType.reps) ...[
-                  const SizedBox(width: 8),
-                  Expanded(
-                    child: FilledButton.icon(
-                      onPressed: onCompleteStep,
-                      style: FilledButton.styleFrom(
-                        minimumSize: const Size.fromHeight(44),
-                      ),
-                      icon: const Icon(Icons.check),
-                      label: const Text('Étape suivante'),
-                    ),
-                  ),
-                ],
               ],
             ),
           ],
@@ -2926,23 +2924,38 @@ final class _TimedStepBody extends StatelessWidget {
       children: [
         Text('Objectif : ${_formatShortSeconds(step.defaultTargetValue)}'),
         const SizedBox(height: 4),
-        Center(
+        Expanded(
-          child: Text(
+          child: LayoutBuilder(
+            builder: (context, constraints) {
+              return FittedBox(
+                fit: BoxFit.contain,
+                alignment: Alignment.center,
+                child: SizedBox(
+                  width: constraints.maxWidth,
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    crossAxisAlignment: CrossAxisAlignment.stretch,
+                    children: [
+                      Text(
                         remainingLabel,
-            style: Theme.of(context).textTheme.displayMedium?.copyWith(
+                        textAlign: TextAlign.center,
+                        style: Theme.of(context).textTheme.displayMedium
+                            ?.copyWith(
                               fontFamily: 'Anton',
-              fontFeatures: AppTextStyles.timer(context).fontFeatures,
+                              fontFeatures: AppTextStyles.timer(
+                                context,
+                              ).fontFeatures,
                               color: Theme.of(context).colorScheme.primary,
                             ),
                       ),
-        ),
                       if (!running) ...[
                         const SizedBox(height: 8),
                         if (readyToStart) ...[
                           Text(
                             'Chrono prêt',
                             textAlign: TextAlign.center,
-              style: Theme.of(context).textTheme.titleSmall?.copyWith(
+                            style: Theme.of(context).textTheme.titleSmall
+                                ?.copyWith(
                                   color: Theme.of(context).colorScheme.primary,
                                 ),
                           ),
@@ -2958,6 +2971,13 @@ final class _TimedStepBody extends StatelessWidget {
                         ),
                       ],
                     ],
+                  ),
+                ),
+              );
+            },
+          ),
+        ),
+      ],
     );
   }
 }

test/presentation/workout_execution_screen_test.dart

@@ -1947,7 +1947,20 @@ void main() {
       find.widgetWithText(OutlinedButton, 'Passer l’étape'),
       findsOneWidget,
     );
-    expect(find.widgetWithText(FilledButton, 'Étape suivante'), findsOneWidget);
+    final nextStepButton = find.widgetWithText(FilledButton, 'Étape suivante');
+    final skipStepButton = find.widgetWithText(
+      OutlinedButton,
+      'Passer l’étape',
+    );
+    expect(nextStepButton, findsOneWidget);
+    expect(
+      tester.getTopLeft(nextStepButton).dy,
+      lessThan(tester.getTopLeft(skipStepButton).dy),
+    );
+    expect(
+      tester.getSize(nextStepButton).width,
+      greaterThan(tester.getSize(skipStepButton).width),
+    );
     await tester.tap(find.text('Étape suivante'));
     await tester.pump();
 
@@ -1997,6 +2010,12 @@ void main() {
     await tester.pump();
 
     expect(find.text('00:05'), findsOneWidget);
+    expect(
+      find.byWidgetPredicate(
+        (widget) => widget is FittedBox && widget.fit == BoxFit.contain,
+      ),
+      findsWidgets,
+    );
     await tester.tap(find.widgetWithText(FilledButton, 'Lancer'));
     await tester.pump();
     clock.value = DateTime.utc(2026, 7, 17, 12, 0, 2);