feat: endless mode UI - game over card, best score, HUD

lib/ui/screens/game_screen.dart

@@ -41,6 +41,7 @@ class _GameScreenState extends ConsumerState<GameScreen>
   );
 
   bool _tutorialStartChecked = false;
+  bool _endlessNewBest = false;
 
   int? _dragIndex;
   Offset? _dragGlobal;
@@ -155,9 +156,11 @@ class _GameScreenState extends ConsumerState<GameScreen>
       if (next.phase == GamePhase.won) {
         audio.play(Sfx.win);
         // recordResult keeps the best run, so re-entry is harmless.
-        ref
-            .read(seasonFlowProvider.notifier)
-            .recordWin(stars: next.starsEarned, score: next.score);
+        if (!next.endless) {
+          ref
+              .read(seasonFlowProvider.notifier)
+              .recordWin(stars: next.starsEarned, score: next.score);
+        }
         final stackBox =
             _stackKey.currentContext?.findRenderObject() as RenderBox?;
         if (stackBox != null) {
@@ -165,6 +168,11 @@ class _GameScreenState extends ConsumerState<GameScreen>
         }
       }
       if (next.phase == GamePhase.lost) audio.play(Sfx.lose);
+      if (next.phase == GamePhase.lost && next.endless) {
+        ref.read(endlessBestProvider.notifier).record(next.score).then((isNew) {
+          if (mounted) setState(() => _endlessNewBest = isNew);
+        });
+      }
       if (next.phase == GamePhase.won || next.phase == GamePhase.lost) {
         ref.read(streakProvider.notifier).onStagePlayed(DateTime.now());
       }
@@ -381,6 +389,18 @@ class _GameScreenState extends ConsumerState<GameScreen>
             ),
           ],
         ),
+      (GamePhase.lost, _) when view.endless => (
+          l10n.gameOver,
+          [
+            FilledButton(
+              onPressed: () {
+                setState(() => _endlessNewBest = false);
+                notifier.restart();
+              },
+              child: Text(l10n.playAgain),
+            ),
+          ],
+        ),
       (_, _) => (
           l10n.stageFailed,
           [
@@ -426,7 +446,24 @@ class _GameScreenState extends ConsumerState<GameScreen>
                       ],
                     ),
                   ],
-                  if (view.phase == GamePhase.lost && view.objectiveProgress > 0) ...[
+                  if (view.phase == GamePhase.lost && view.endless) ...[
+                    const SizedBox(height: 10),
+                    Text('${view.score}',
+                        style: theme.textTheme.displaySmall
+                            ?.copyWith(fontWeight: FontWeight.w900)),
+                    const SizedBox(height: 4),
+                    Text(
+                      _endlessNewBest
+                          ? l10n.newBest
+                          : l10n.bestScore(ref.read(endlessBestProvider)),
+                      style: TextStyle(
+                        color:
+                            _endlessNewBest ? Colors.amber : Colors.white60,
+                        fontWeight: FontWeight.w800,
+                      ),
+                    ),
+                  ],
+                  if (view.phase == GamePhase.lost && !view.endless && view.objectiveProgress > 0) ...[
                     const SizedBox(height: 16),
                     SizedBox(
                       width: 88,

lib/ui/widgets/hud_widget.dart

@@ -16,7 +16,7 @@ class HudWidget extends StatelessWidget {
         Row(
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
           children: [
-            _movesChip(theme),
+            view.endless ? const SizedBox(width: 48) : _movesChip(theme),
             AnimatedSwitcher(
               duration: const Duration(milliseconds: 200),
               transitionBuilder: (child, anim) =>