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-en.json

@@ -12,7 +12,8 @@
     "powerOffConfirmCancel": "Cancel",
     "powerOffToastDemo": "Demo mode: disconnected from the device.",
     "powerOffToastSent": "Shutdown command sent.",
-    "doubleClickHint": "Double-click to enter"
+    "doubleClickHint": "Double-click to enter",
+    "backToLegacy": "Legacy version"
   },
   "vuPage": {
     "title": "VU meter gallery"
@@ -587,7 +588,7 @@
       "deviceName": "Device name",
       "firmwareVersion": "Firmware version",
       "macAddress": "MAC address",
-      "disconnect": "Disconnect"
+      "deviceIp": "Device IP"
     }
   },
   "prompt": {