refactor(dialog): 优化 CommonDialog 代码质量

- 修复 setPositiveButton 中 lambda 隐式参数 it 被遮蔽的问题
- 提取 isMaster 为局部变量，消除重复计算
- addContentView 挂载前先 removeAllViews()，防止重复添加

app/src/main/java/com/shuwei/dish/match/dialog/CommonDialog.kt

@@ -53,7 +53,7 @@ open class CommonDialog(
     /** 设置右侧确认按钮文字及点击回调（3按钮模式下对应底部按钮），点击后自动关闭弹窗 */
     fun setPositiveButton(text: String, onClick: (() -> Unit)? = null): CommonDialog = apply {
         positiveText = text
-        positiveClick = onClick?.let { { it(); true } }
+        positiveClick = onClick?.let { cb -> { cb(); true } }
     }
 
     /**
@@ -99,9 +99,9 @@ open class CommonDialog(
         setContentView(binding.root)
         // 弹窗不允许点击外部关闭
         setCancelable(false)
+        val isMaster = GlobalData.deviceRole == DeviceRole.MASTER
         window?.run {
             val screenWidth = context.resources.displayMetrics.widthPixels
-            val isMaster = GlobalData.deviceRole == DeviceRole.MASTER
             attributes = attributes.apply {
                 width = if (isMaster) (screenWidth * 0.72f).toInt() else (screenWidth * 0.60f).toInt()
             }
@@ -111,7 +111,7 @@ open class CommonDialog(
             setWindowAnimations(R.style.CommonDialogAnimation)
         }
         // 主/从设备边距微调：主设备内容区域更大，适当增加上下留白
-        val verticalMargin = if (GlobalData.deviceRole == DeviceRole.MASTER) 48.dp else 36.dp
+        val verticalMargin = if (isMaster) 48.dp else 36.dp
         binding.tvTitle.updateLayoutParams<LinearLayout.LayoutParams> { topMargin = verticalMargin }
         binding.tvContent.updateLayoutParams<LinearLayout.LayoutParams> { bottomMargin = verticalMargin }
 
@@ -148,6 +148,7 @@ open class CommonDialog(
 
         // 挂载自定义内容 View，并执行 tvContent 的灵活控制回调
         pendingContentView?.let {
+            binding.llContent.removeAllViews()
             binding.llContent.addView(it)
             binding.llContent.visibility = View.VISIBLE
             tvContentConfigurator?.invoke(binding.tvContent)