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/pages/SystemPage.tsx

@@ -90,7 +90,7 @@ type LocaleSettings = {
       deviceName: string;
       firmwareVersion: string;
       macAddress: string;
-      disconnect: string;
+      deviceIp: string;
     };
   };
 };
@@ -109,7 +109,7 @@ function optionLabels(items: Array<{ index: number; label: string }> | undefined
 
 export default function SystemPage() {
   const [, setLocation] = useLocation();
-  const { deviceState, updateSetting, disconnect, refresh, isConnected, api } = useDevice();
+  const { deviceState, updateSetting, refresh, isConnected, api, ip } = useDevice();
   const ds = deviceState;
 
   // 页面加载且已连接时刷新数据
@@ -204,16 +204,10 @@ export default function SystemPage() {
             <span className="flex-1 text-[16px] text-white">{ui.macAddress}</span>
             <span className="ios-row-value text-[12px]">{ds?.mac ?? "—"}</span>
           </div>
-        </div>
-
-        {/* ── 断开连接 ── */}
-        <div className="mt-6 mb-4">
-          <button
-            className="w-full py-4 rounded-[14px] text-[16px] font-medium transition-all duration-150 active:scale-[0.98]"
-            style={{ background: "rgba(239,68,68,0.1)", border: "1px solid rgba(239,68,68,0.2)", color: "#ef4444" }}
-            onClick={() => { disconnect(); setLocation("/"); }}>
-            {ui.disconnect}
-          </button>
+          <div className="ios-list-row">
+            <span className="flex-1 text-[16px] text-white">{ui.deviceIp ?? "设备 IP"}</span>
+            <span className="ios-row-value text-[12px]">{ip || "—"}</span>
+          </div>
         </div>
       </div>