fix: 修正自动充电任务检查逻辑

将自动充电的条件从检查任务是否为空改为检查任务是否允许充电
新增 `isAutoRechargeAllowedTask()` 方法，允许 "speech" 任务时也能触发自动充电

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

@@ -749,7 +749,7 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
     }
 
     private fun scheduleAutoRechargeAfterIdleArrival() {
-        if (taskController.currentTask.isNotEmpty()) {
+        if (!isAutoRechargeAllowedTask()) {
             return
         }
         if (robotEventHandler.normalizeLocation(lastArrivalLocation) == "homebase") {
@@ -758,7 +758,7 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
         autoRechargeJob?.cancel()
         autoRechargeJob = mainScope.launch {
             delay(10_000L)
-            if (taskController.currentTask.isNotEmpty()) {
+            if (!isAutoRechargeAllowedTask()) {
                 return@launch
             }
             if (robotEventHandler.normalizeLocation(lastArrivalLocation) == "homebase") {
@@ -769,6 +769,11 @@ class MainActivity : AppCompatActivity(), OnRobotReadyListener, TtsListener, OnG
         }
     }
 
+    private fun isAutoRechargeAllowedTask(): Boolean {
+        val task = taskController.currentTask.trim().lowercase()
+        return task.isEmpty() || task == "speech"
+    }
+
     private fun cancelAutoRecharge(reason: String) {
         if (autoRechargeJob?.isActive == true) {
             Log.i("MainActivity", "Auto recharge canceled: $reason")