feat: display hint usage percentage in win screen

src/components/WinModal.vue

@@ -175,7 +175,11 @@ const buildShareCanvas = () => {
   if (store.guideUsageCount > 0) {
       ctx.fillStyle = '#ff4d4d';
       ctx.font = '600 14px "Segoe UI", sans-serif';
-      const guideText = t('win.usedGuide', { count: store.guideUsageCount });
+      
+      const totalCells = store.size * store.size;
+      const percent = Math.min(100, Math.round((store.guideUsageCount / totalCells) * 100));
+      const guideText = t('win.usedGuide', { count: store.guideUsageCount, percent });
+      
       ctx.fillText(`⚠️ ${guideText}`, padding, height - padding - footerHeight + 10);
   }
 

src/composables/useI18n.js

@@ -46,7 +46,7 @@ const messages = {
     'win.shareWhatsapp': 'WhatsApp',
     'win.shareDownload': 'Pobierz zrzut',
     'win.difficulty': 'Poziom:',
-    'win.usedGuide': 'Użyto podpowiedzi: {count}',
+    'win.usedGuide': 'Podpowiedzi: {percent}% ({count})',
     'pwa.installTitle': 'Zainstaluj aplikację i graj offline',
     'pwa.installMobile': 'Dodaj do ekranu głównego',
     'pwa.installDesktop': 'Zainstaluj na komputerze',
@@ -153,7 +153,7 @@ const messages = {
     'win.shareWhatsapp': 'WhatsApp',
     'win.shareDownload': 'Download screenshot',
     'win.difficulty': 'Difficulty:',
-    'win.usedGuide': 'Guide used: {count}',
+    'win.usedGuide': 'Hints: {percent}% ({count})',
     'pwa.installTitle': 'Install the app and play offline',
     'pwa.installMobile': 'Add to home screen',
     'pwa.installDesktop': 'Install on desktop',