feat(business): 增加餐具重量配置及扣减功能

- 在 BusinessFragment 中添加实时秤重读取及餐具重量持久化存储
- 在界面显示餐具重量标签，配置时显示当前保存值
- 定义全局常量 KEY_DISH_WEIGHT 用于存储餐具重量
- 在 MainActivity 内部方法添加获取配置餐具重量接口
- 修改订餐逻辑，取餐提交时自动从就餐重量中扣减餐具重量
- 在主界面相关订单及计价逻辑中扣减餐具重量影响份数和价格
- 调整重量监听及订单添加部分逻辑以应用净重计算
- 更新定时任务延迟时间，提高效率和响应速度

app/src/main/java/com/sw/dualscreen/activity/MainActivity.kt

@@ -963,6 +963,14 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         return eatNum;
     }
 
+    /**
+     * 读取已配置的餐具重量(克)。
+     * 用于取餐提交时从就餐重量中扣减，默认 0 表示未配置、不扣减。
+     */
+    internal fun getDishWeight(): Int {
+        return SPUtil.getInstance().get(GlobalKey.KEY_DISH_WEIGHT, 0) ?: 0
+    }
+
     private var foodOrderId: String = ""
     private var isExist = false
     fun addBackEventListener() {
@@ -1039,6 +1047,8 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         val mealPickupMode = SPUtil.getInstance().get(GlobalKey.KEY_PICKUP_MODE, 0) ?: 0
         //0-计费，1-不计费
         val chargeMode = SPUtil.getInstance().get(GlobalKey.KEY_CHARGE_MODE, 0) ?: 0
+        // 餐具重量(克)，提交就餐数据时从就餐重量中扣减
+        val dishWeight = getDishWeight()
         var foodWeight = 0
         var eatWeight = 0
         if (chargeMode == 0) {
@@ -1064,6 +1074,10 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
                 recognizeWeight - currentWeight
             }
         }
+        // 扣减餐具重量(仅影响就餐重量与份数，菜品原始重量 foodWeight 保持不变)，不足则归零
+        val rawEatWeight = eatWeight
+        eatWeight = (rawEatWeight - dishWeight).coerceAtLeast(0)
+        log("clickPayButton dishWeight=$dishWeight, rawEatWeight=$rawEatWeight, deductedEatWeight=$eatWeight")
         val eatNum = getEatNum(eatWeight.toDouble(), checkedItem!!.specWeight)
         createOrder(
             foodInfo = checkedItem!!,
@@ -1196,10 +1210,8 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
     private val intervalExecutor by lazy { IntervalExecutor() }
     private var faceTaskJob: Job? = null
 
-    //    private val initialDelay = 5 * 60 * 1000L
-//    private val dealyMillis = 10 * 60 * 1000L
-    private val initialDelay = 10 * 1000L
-    private val dealyMillis = 5 * 1000L
+    private val initialDelay = 60 * 1000L
+    private val dealyMillis = 30 * 1000L
 
     //    private var taskPageNo = 1
     fun startFaceTask() {