fix(scale): 修复主从设备IP显示异常及RecyclerView滑动崩溃

- 新增 NetworkUtil 统一获取本机IP，兼容 Android 12+（ConnectivityManager）和低版本（WifiManager）
- 主设备IP改为实时读取，修复App启动时网络未就绪导致IP缓存为空的问题
- MasterScaleActivity/SlaveActivity 关闭RecyclerView默认ItemAnimator，消除高频刷新时的闪烁
- BaseActivity.hideSystemBars 加防重入标志，避免重复调用setDecorFitsSystemWindows触发布局重绘导致滑动崩溃
- 新增 CrashHandler，崩溃时记录日志并自动重启应用

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/java/com/shuwei/dish/match/scale/ScaleServiceManager.kt

@@ -1,10 +1,10 @@
 package com.shuwei.dish.match.scale
 
 import android.content.Context
-import android.net.wifi.WifiManager
 import android.util.Log
 import com.shuwei.dish.match.base.DeviceRole
 import com.shuwei.dish.match.base.GlobalData
+import com.shuwei.dish.match.utils.NetworkUtil
 import kotlinx.coroutines.flow.StateFlow
 
 /**
@@ -70,17 +70,10 @@ object ScaleServiceManager {
     }
 
     /**
-     * 通过 WifiManager 获取本机 WiFi IP 地址
+     * 获取本机局域网 IP，委托给 NetworkUtil 统一处理版本兼容
      */
     private fun getLocalIp(context: Context): String {
-        return try {
-            val wm = context.applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
-            val ip = wm.connectionInfo.ipAddress
-            if (ip == 0) "" else
-                "${ip and 0xFF}.${ip shr 8 and 0xFF}.${ip shr 16 and 0xFF}.${ip shr 24 and 0xFF}"
-        } catch (e: Exception) {
-            ""
-        }
+        return NetworkUtil.getLocalIpAddress(context)
     }
 
     /**