fix: зависание записи ГС — race condition в startVoiceRecording + утечка isVoiceRecordTransitioning

Root cause 1: startVoiceRecording() проверял только isVoiceRecording,
но isVoiceRecording=true ставился через 192ms в scope.launch. При быстром
двойном тапе два MediaRecorder создавались, первый терялся (утечка).
Фикс: добавлен guard на isVoiceRecordTransitioning и voiceRecorder!=null.

Root cause 2: isVoiceRecordTransitioning=true ставился перед scope.launch,
но если launch крашился или composable disposed, transitioning навсегда
оставался true — gesture guard блокировал все записи до перезапуска.
Фикс: try/catch в launch + reset в DisposableEffect.

Root cause 3: DisposableEffect проверял только isVoiceRecording, но не
voiceRecorder!=null — если recorder создан но isVoiceRecording ещё false,
recorder не освобождался при dispose.
Фикс: проверка voiceRecorder!=null в dispose.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/src/main/java/com/rosetta/messenger/ui/chats/input/ChatDetailInput.kt

@@ -1180,7 +1180,7 @@ fun MessageInputBar(
     }
 
     fun startVoiceRecording() {
-        if (isVoiceRecording) return
+        if (isVoiceRecording || isVoiceRecordTransitioning || voiceRecorder != null) return
         inputJumpLog(
             "startVoiceRecording begin mode=$recordMode state=$recordUiState kb=$isKeyboardVisible emojiBox=${coordinator.isEmojiBoxVisible} " +
                 "emojiPicker=$showEmojiPicker panelH=$inputPanelHeightPx normalH=$normalInputRowHeightPx"
@@ -1227,20 +1227,25 @@ fun MessageInputBar(
             )
 
             scope.launch {
-                repeat(12) {
+                try {
-                    if (!isKeyboardVisible && !coordinator.isEmojiBoxVisible) return@repeat
+                    repeat(12) {
-                    delay(16)
+                        if (!isKeyboardVisible && !coordinator.isEmojiBoxVisible) return@repeat
+                        delay(16)
+                    }
+                    isVoiceRecording = true
+                    isVoiceRecordTransitioning = false
+                    if (recordUiState == RecordUiState.PRESSING || recordUiState == RecordUiState.IDLE) {
+                        setRecordUiState(RecordUiState.RECORDING, "voice-recorder-started")
+                    }
+                    inputJumpLog(
+                        "startVoiceRecording ui-enter mode=$recordMode state=$recordUiState voice=$isVoiceRecording kb=$isKeyboardVisible " +
+                            "emojiBox=${coordinator.isEmojiBoxVisible} transitioning=$isVoiceRecordTransitioning " +
+                            "panelH=$inputPanelHeightPx recH=$recordingInputRowHeightPx"
+                    )
+                } catch (e: Exception) {
+                    isVoiceRecordTransitioning = false
+                    inputJumpLog("startVoiceRecording launch failed: ${e.message}")
                 }
-                isVoiceRecording = true
-                isVoiceRecordTransitioning = false
-                if (recordUiState == RecordUiState.PRESSING || recordUiState == RecordUiState.IDLE) {
-                    setRecordUiState(RecordUiState.RECORDING, "voice-recorder-started")
-                }
-                inputJumpLog(
-                    "startVoiceRecording ui-enter mode=$recordMode state=$recordUiState voice=$isVoiceRecording kb=$isKeyboardVisible " +
-                        "emojiBox=${coordinator.isEmojiBoxVisible} transitioning=$isVoiceRecordTransitioning " +
-                        "panelH=$inputPanelHeightPx recH=$recordingInputRowHeightPx"
-                )
             }
         } catch (_: Exception) {
             isVoiceRecordTransitioning = false
@@ -1420,8 +1425,9 @@ fun MessageInputBar(
     DisposableEffect(Unit) {
         onDispose {
             pendingRecordAfterPermission = false
+            isVoiceRecordTransitioning = false
             resetGestureState()
-            if (isVoiceRecording) {
+            if (isVoiceRecording || voiceRecorder != null) {
                 stopVoiceRecording(send = false)
             } else {
                 setRecordUiState(RecordUiState.IDLE, "dispose")