chore: battle result UI, demo locales, and scene updates

public/demo/locales/en.json

@@ -95,5 +95,5 @@
     "hud": { "player": "You" },
     "result": { "victory": "Victory!" }
   },
-  "stat": { "courage": "Courage" }
+  "stat": { "courage": "Courage", "qte_succeeded": "QTE Wins", "trust": "Trust", "investigation": "Investigation" }
 }

public/demo/locales/zh.json

@@ -95,5 +95,5 @@
     "hud": { "player": "你" },
     "result": { "victory": "击退成功！" }
   },
-  "stat": { "courage": "勇气" }
+  "stat": { "courage": "勇气", "qte_succeeded": "QTE 成功", "trust": "信任值", "investigation": "调查进度" }
 }

public/scenes/demo.json

@@ -417,7 +417,10 @@
         "title": "击退成功！",
         "titleKey": "battle.result.victory",
         "stats": [
-          { "label": "勇气", "labelKey": "stat.courage", "variable": "courage", "max": 100 }
+          { "label": "勇气", "labelKey": "stat.courage", "variable": "courage", "max": 100 },
+          { "label": "QTE 成功", "labelKey": "stat.qte_succeeded", "variable": "qte_succeeded" },
+          { "label": "信任值", "labelKey": "stat.trust", "variable": "trust" },
+          { "label": "调查进度", "labelKey": "stat.investigation", "variable": "investigation", "max": 3 }
         ]
       },
       "choices": [