fix: add missing Japanese UI keys, deduplicate resume key, use pauseResume for pause menu

src/components/PauseMenu.vue

@@ -17,7 +17,7 @@ const { t } = useI18n()
       <h2 class="pause-title">{{ t('ui.paused') }}</h2>
 
       <div class="pause-actions">
-        <button class="pause-btn primary" @click="emit('resume')">{{ t('ui.resume') }}</button>
+        <button class="pause-btn primary" @click="emit('resume')">{{ t('ui.pauseResume') }}</button>
         <button class="pause-btn" @click="emit('saveLoad')">{{ t('ui.saveLoad') }}</button>
         <button class="pause-btn" @click="emit('settings')">{{ t('ui.settings') }}</button>
         <button class="pause-btn danger" @click="emit('quitToMenu')">{{ t('ui.quitToMenu') }}</button>

src/locales/en.json

@@ -18,7 +18,7 @@
     "loading": "Loading...",
     "speed": "Speed",
     "paused": "Paused",
-    "resume": "Resume",
+    "pauseResume": "Resume",
     "saveLoad": "Save / Load",
     "settings": "Settings",
     "quitToMenu": "Back to Menu",

src/locales/ja.json

@@ -17,7 +17,15 @@
     "empty": "なし",
     "loading": "読み込み中...",
     "speed": "倍速",
+    "paused": "一時停止",
+    "pauseResume": "再開",
+    "saveLoad": "セーブ / ロード",
+    "settings": "設定",
+    "quitToMenu": "メニューに戻る",
+    "pauseHint": "Esc = 再開",
+    "achievements": "実績",
+    "gallery": "ギャラリー",
     "noAutoSave": "オートセーブがありません",
     "autoSaveHint": "シーン切替時にスロット0に自動保存されます"
   }
-}
+}

src/locales/zh.json

@@ -18,7 +18,7 @@
     "loading": "加载中...",
     "speed": "倍速",
     "paused": "游戏暂停",
-    "resume": "继续",
+    "pauseResume": "继续",
     "saveLoad": "存档 / 读档",
     "settings": "设置",
     "quitToMenu": "返回主菜单",