Keep failed video shutdown joins and rejected cleanup requests retryable

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

@@ -70,6 +70,7 @@ class CallVideoEngine(private val context: Context, private val id: Long) {
     private var sessionSerial = 0L
     private val sessions = mutableMapOf<Long, Pair<CameraDevice, () -> Unit>>()
     @Volatile private var stopped = false
+    private var stopCleanupPosted = false // Main: RX join/native close и постановка финального camera cleanup подтверждены.
     private var encoders = emptyMap<Int, CallVideoCodec.Companion.Encoder>()
     private var caps = ByteArray(64)
     private var wanted = CallVideoSettings()
@@ -580,9 +581,9 @@ class CallVideoEngine(private val context: Context, private val id: Long) {
     }
 
     fun stop() {
-        if (stopped) return
+        if (stopCleanupPosted) return
         stopped = true; player.stop(); CallVideoNative.close(id)
-        handler.post {
+        check(handler.post {
             observeOrientation(false)
             mutable.value = mutable.value.copy(transmitting = false, activeCodec = 0)
             closeCamera(); encoder?.close(); encoder = null; pendingFrames.clear()
@@ -590,6 +591,10 @@ class CallVideoEngine(private val context: Context, private val id: Long) {
             if (camera == null && !opening) thread.quitSafely()
             else handler.postDelayed({ thread.quitSafely() }, 3000)
             LogManager.addLog("INFO", "call", "video workers stopped id=$id")
+        }) {
+            LogManager.addLog("ERROR", "call", "video stop cleanup rejected id=$id; stop remains retryable")
+            "Video cleanup worker rejected stop"
         }
+        stopCleanupPosted = true
     }
 }

tools/chatgui-android/call-service-tests/src/test/kotlin/com/utun/chat/data/CallServiceLifecycleTest.kt

@@ -48,6 +48,7 @@ class CallServiceLifecycleTest {
     }
 
     @After fun release() {
+        NativeLib.failActivityRequest = false
         Handler.rejectImmediate = false; Handler.rejectDelayed = false
         AppLanguage.failText = false; NotificationCompat.failBuild = false; CallVideoEngine.failCreate = false
         power.failures = emptySet(); power.locks.forEach { it.failures = emptySet() }