feat: 添加持仓数据类型和组件，支持持仓信息的展示与刷新功能

src/locales/zh-CN.json

@@ -310,6 +310,22 @@
     },
     "loadMore": "加载更多"
   },
+  "holdings": {
+    "title": "我的持仓",
+    "empty": "暂无持仓订单",
+    "nameCode": "名称/编号",
+    "quantity": "数量",
+    "totalValue": "总价值",
+    "purchaseDate": "购买日期",
+    "status": {
+      "active": "持有中",
+      "tokenized": "已代币化",
+      "locked": "锁定中"
+    },
+    "units": {
+      "shares": "份"
+    }
+  },
   "market": {
     "title": "市场",
     "search": {