Retain the media teardown barrier while Telecom cleanup is pending

tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt

@@ -43,7 +43,7 @@ object CallController : TelecomCallManager.Listener {
 
     /** Подготовка, разговор и неподтверждённый cleanup сервиса запрещают запуск чужого media.
      * Predicate читается также media workers; CallService публикует retained-владельца через volatile. */
-    fun blocksMedia(): Boolean = CallService.cleanupPending() || mediaPreparation?.isActive == true || _state.value?.let {
+    fun blocksMedia(): Boolean = CallService.cleanupPending() || TelecomCallManager.cleanupPending() || mediaPreparation?.isActive == true || _state.value?.let {
         it.preparing || it.phase == CallPhase.OUTGOING || it.phase == CallPhase.RINGING ||
             it.phase == CallPhase.WAIT_DECISION || it.phase == CallPhase.ACTIVE
     } == true

tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallService.kt

@@ -52,8 +52,8 @@ class CallService : Service() {
         /** На main повторить незавершённую очистку. Ошибка запрещает заменять владельца или останавливать ядро. */
         fun requireReleased() {
             checkMain()
-            val previous = pendingCleanup ?: return
-            previous.shutdown()
+            pendingCleanup?.shutdown()
+            TelecomCallManager.requireReleased()
             check(pendingCleanup == null) {
                 val message = "Call service cleanup still pending id=${previous.callId}"
                 LogManager.addLog("ERROR", "CallService", message)

tools/chatgui-android/app/src/main/java/com/utun/chat/data/TelecomCallManager.kt

@@ -50,6 +50,7 @@ object TelecomCallManager {
     private val disconnected = mutableSetOf<UtunConnection>()
     private var cleanupQueued = false
     private var cleanupDelay = 250L
+    @Volatile private var retiring = false
     private val cleanupRetry = Runnable { cleanupQueued = false; cleanupConnections() }
 
     @Volatile private var phoneAccountHandle: PhoneAccountHandle? = null
@@ -84,6 +85,17 @@ object TelecomCallManager {
 
     fun isReady(): Boolean = ready
 
+    /** Не передавать глобальную аудиополитику другому media/core, пока SDK удерживает старый Connection. */
+    fun cleanupPending(): Boolean = retiring
+
+    fun requireReleased() {
+        checkMain(); cleanupConnections()
+        check(!retiring) {
+            LogManager.addLog("ERROR", TAG, "Telecom cleanup still pending connections=${closing.size}")
+            "Telecom connection cleanup pending"
+        }
+    }
+
     /** Создать исходящий вызов в Telecom. Возвращает false, если Telecom недоступен. */
     fun placeCall(callId: Long, peerNodeId: Long, displayName: String): Boolean {
         val tm = telecomManager() ?: return false
@@ -202,6 +214,7 @@ object TelecomCallManager {
 
     private fun retire(callId: Long, conn: UtunConnection, reason: Int) {
         closing.putIfAbsent(conn, Closing(callId, reason, conn in disconnected))
+        retiring = true
         reasons.remove(conn); disconnected.remove(conn); cleanupConnections()
     }
 
@@ -214,7 +227,8 @@ object TelecomCallManager {
                 LogManager.addLog("ERROR", TAG, "connection destroy failed id=${owner.id}; retained: $e")
             }
         }
-        if (closing.isEmpty()) { mainHandler.removeCallbacks(cleanupRetry); cleanupQueued = false; cleanupDelay = 250; return }
+        retiring = closing.isNotEmpty()
+        if (!retiring) { mainHandler.removeCallbacks(cleanupRetry); cleanupQueued = false; cleanupDelay = 250; return }
         if (!cleanupQueued) {
             cleanupQueued = mainHandler.postDelayed(cleanupRetry, cleanupDelay)
             if (!cleanupQueued) LogManager.addLog("ERROR", TAG, "connection cleanup retry rejected count=${closing.size}; owners retained")