feat(configs): 添加三阶魔器宝箱物品配置

- 在 StdItems.json 文件中添加了新的物品配置，ID 为 1394
- 该物品为三阶魔器宝箱，具有以下特点：
  - 打开后可随机获得三阶魔器中的任意一件
  - 获得随机奖励
  - 限制交易、销毁和出售
  - 设有专属图标和描述
  - 属于高级物品，具有较高的品质和稀有度

configs/StdItems.json

@@ -48350,5 +48350,37 @@
     "time": 0,
     "trade": 1,
     "type": 8
+  },
+  "1394": {
+    "cdTime": 0,
+    "colGroup": 0,
+    "conds": [],
+    "dealPrice": 10,
+    "dealType": 0,
+    "denyDeal": 1,
+    "denyDestroy": 1,
+    "denySell": 1,
+    "desc": "打开后随机获得三阶魔器中的任意一件，获得随机奖励",
+    "dropBroadcast": 0,
+    "dropGroupid": 100881,
+    "dup": 9999,
+    "existScenes": [-1],
+    "icon": 13509,
+    "id": 1394,
+    "isShowUseBtn": 1,
+    "iseffect": 127,
+    "itemlvl": 3,
+    "name": "三阶魔器宝箱",
+    "packageType": 2,
+    "recordLog": 1,
+    "recoverid": 0,
+    "shape": 0,
+    "showQuality": 5,
+    "staitcAttrs": [],
+    "suggVocation": 0,
+    "suitId": 0,
+    "time": 0,
+    "trade": 3,
+    "type": 131
   }
 }