refactor: 移除未使用的初始状态变量并简化恢复逻辑

- 删除未使用的 `initialTask` 等成员变量
- 直接从 savedInstanceState 恢复状态并立即处理特殊值
- 简化 `shouldAutoRechargeAfterIdleArrival` 方法，直接使用行为决策
- 移除特殊状态下已跳过的到达播报中的冗余充电调度调用

app/src/main/java/com/example/lzwcai_terminal_temi/MainActivity.kt

@@ -88,14 +88,6 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
     private var lastArrivalLocation: String? = null
     private var lastArrivalAt: Long = 0L
 
-    private var initialTask: String = ""
-    private var initialReceptionLocation: String = ""
-    private var initialReceptionText: String = ""
-    private var initialReceptionDestination: String = ""
-    private var initialNotificationLocation: String = ""
-    private var initialNotificationText: String = ""
-
-
     private var closeDoorJob: Job? = null
     private var detectConfirmJob: Job? = null
     private var idleConfirmJob: Job? = null
@@ -141,18 +133,16 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
         navCon = NavController(robot)
         permissionManager = PermissionManager(robot)
 
+        val restoredTask = (savedInstanceState?.getString("currentTask", "") ?: "")
+            .let { if (it == "special") "" else it }
+        val restoredReceptionLocation = savedInstanceState?.getString("receptionLocation", "") ?: ""
+        val restoredReceptionText = savedInstanceState?.getString("receptionText", "") ?: ""
+        val restoredReceptionDestination = savedInstanceState?.getString("receptionDestination", "") ?: ""
+        val restoredNotificationLocation = savedInstanceState?.getString("notificationLocation", "") ?: ""
+        val restoredNotificationText = savedInstanceState?.getString("notificationText", "") ?: ""
         if (savedInstanceState != null) {
-            initialTask = savedInstanceState.getString("currentTask", "") ?: ""
-            initialReceptionLocation = savedInstanceState.getString("receptionLocation", "") ?: ""
-            initialReceptionText = savedInstanceState.getString("receptionText", "") ?: ""
-            initialReceptionDestination = savedInstanceState.getString("receptionDestination", "") ?: ""
-            initialNotificationLocation = savedInstanceState.getString("notificationLocation", "") ?: ""
-            initialNotificationText = savedInstanceState.getString("notificationText", "") ?: ""
             lastArrivalLocation = savedInstanceState.getString("lastArrivalLocation")
         }
-        if (initialTask == "special") {
-            initialTask = ""
-        }
 
         prefs = getSharedPreferences("app_prefs", Context.MODE_PRIVATE)
         prefs.registerOnSharedPreferenceChangeListener(this)
@@ -230,12 +220,12 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
             }
         )
         taskController.restoreState(
-            initialTask,
+            restoredTask,
-            initialReceptionLocation,
+            restoredReceptionLocation,
-            initialReceptionText,
+            restoredReceptionText,
-            initialReceptionDestination,
+            restoredReceptionDestination,
-            initialNotificationLocation,
+            restoredNotificationLocation,
-            initialNotificationText
+            restoredNotificationText
         )
 
         binding.btnReception.setOnClickListener {
@@ -440,9 +430,6 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
         val behavior = resolveBehaviorDecision()
         if (behavior.skipArrivalAnnouncement) {
             Log.i("MainActivity", "Special state: arrival announcement skipped at $location.")
-            if (behavior.allowAutoRecharge) {
-                scheduleAutoRechargeAfterIdleArrival()
-            }
             return
         }
         val text = "已到达$location"
@@ -784,11 +771,7 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
     }
 
     private fun shouldAutoRechargeAfterIdleArrival(): Boolean {
-        if (isSpecialStateEnabled()) {
+        return resolveBehaviorDecision().allowAutoRecharge
-            return false
-        }
-        val task = taskController.currentTask.trim().lowercase()
-        return task.isEmpty() || task == "speech"
     }
 
     private fun resolveBehaviorDecision(): BehaviorDecision {