Refactor build and start scripts in package.json; add plugin to exclude debug files from production build in vite.config.ts; remove ConnectScreen component and replace with ConnectionPlaceholder in multiple pages; update DeviceContext to auto-connect using device IP from URL; enhance locale files with new device IP labels.

client/src/locales/data-zh.json

@@ -12,7 +12,8 @@
     "powerOffConfirmCancel": "取消",
     "powerOffToastDemo": "演示模式：已断开与设备的连接",
     "powerOffToastSent": "已发送关机指令",
-    "doubleClickHint": "双击进入"
+    "doubleClickHint": "双击进入",
+    "backToLegacy": "返回旧版"
   },
   "vuPage": {
     "title": "VU 表库"
@@ -404,7 +405,7 @@
       "deviceName": "设备名称",
       "firmwareVersion": "固件版本",
       "macAddress": "MAC 地址",
-      "disconnect": "断开连接"
+      "deviceIp": "设备 IP"
     }
   },
   "prompt": {