feat(chat): voice playback progress bar + 2-min recording cap

Voice bubbles show a determinate progress bar + elapsed time that advance during
playback (polling MediaPlayer position); recording auto-stops and sends at 2 minutes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/src/main/java/app/closer/ui/messages/components/ChatComponents.kt

@@ -39,6 +39,7 @@ import androidx.compose.material.icons.filled.PlayArrow
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
@@ -284,6 +285,8 @@ private fun EncryptedVoiceMessage(
     var tempFile by remember { mutableStateOf<File?>(null) }
     var playing by remember { mutableStateOf(false) }
     var loading by remember { mutableStateOf(false) }
+    var positionMs by remember { mutableLongStateOf(0L) }
+    val totalMs = durationMs.coerceAtLeast(1L)
 
     DisposableEffect(Unit) {
         onDispose {
@@ -292,6 +295,14 @@ private fun EncryptedVoiceMessage(
         }
     }
 
+    // Poll the player position so the progress bar advances during playback.
+    LaunchedEffect(playing) {
+        while (playing) {
+            positionMs = player?.currentPosition?.toLong() ?: positionMs
+            delay(100)
+        }
+    }
+
     fun toggle() {
         val p = player
         if (p != null) {
@@ -310,7 +321,7 @@ private fun EncryptedVoiceMessage(
             val mp = MediaPlayer()
             runCatching {
                 mp.setDataSource(f.absolutePath)
-                mp.setOnCompletionListener { playing = false; runCatching { mp.seekTo(0) } }
+                mp.setOnCompletionListener { playing = false; positionMs = 0L; runCatching { mp.seekTo(0) } }
                 mp.prepare()
                 mp.start()
             }.onSuccess { player = mp; playing = true }.onFailure { mp.release() }
@@ -340,8 +351,17 @@ private fun EncryptedVoiceMessage(
                     )
                 }
             }
-            Icon(Icons.Filled.Mic, contentDescription = null, tint = tint.copy(alpha = 0.7f), modifier = Modifier.size(16.dp))
+            LinearProgressIndicator(
-            Text(text = formatDuration(durationMs), style = MaterialTheme.typography.bodyMedium, color = tint)
+                progress = { if (totalMs > 0) (positionMs.toFloat() / totalMs).coerceIn(0f, 1f) else 0f },
+                modifier = Modifier.width(92.dp),
+                color = tint,
+                trackColor = tint.copy(alpha = 0.25f)
+            )
+            Text(
+                text = formatDuration(if (playing || positionMs > 0) positionMs else durationMs),
+                style = MaterialTheme.typography.bodyMedium,
+                color = tint
+            )
         }
     }
 }
@@ -464,7 +484,11 @@ fun ChatComposer(
     ) { granted: Boolean -> if (granted) startRecording() }
 
     LaunchedEffect(isRecording) {
-        while (isRecording) { elapsedMs = System.currentTimeMillis() - recordStart; delay(200) }
+        while (isRecording) {
+            elapsedMs = System.currentTimeMillis() - recordStart
+            if (elapsedMs >= MAX_RECORDING_MS) { finishRecording(send = true); break } // auto-send at the cap
+            delay(200)
+        }
     }
     DisposableEffect(Unit) {
         onDispose { runCatching { recorder.value?.release() }; recordFile.value?.delete() }
@@ -549,6 +573,9 @@ fun ChatComposer(
     }
 }
 
+/** Cap voice notes at 2 minutes; recording auto-stops and sends at this length. */
+private const val MAX_RECORDING_MS = 120_000L
+
 private fun formatDuration(ms: Long): String {
     val totalSec = (ms / 1000).toInt()
     val m = totalSec / 60