fix(android): output picker CI - passive discovery + LongMethod

Two failures on the slice's final dev tip:

1. OutputPickerController referenced
   MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY which doesn't exist
   in androidx.mediarouter 1.7.0 - the spec hallucinated it.
   Passive discovery is the default behavior when addCallback is
   called with no flag argument. Use the 2-arg overload for the
   init block and downgradeDiscovery; keep CALLBACK_FLAG_REQUEST_DISCOVERY
   for upgradeDiscovery.

2. NowPlayingBody grew to 82 lines after the Task 5 output-picker
   wiring (state collection + permission launcher + LaunchedEffect
   + conditional Sheet). Extracted the BLUETOOTH_CONNECT permission
   plumbing into rememberBluetoothPermissionState, the Column layout
   into NowPlayingContent, and the scrubber+transport pair (which
   share the smoothed playback position) into PlaybackControlsBlock.
   NowPlayingBody is back to ~34 lines and the new helpers each sit
   well under detekt's 60-line LongMethod cap.

android/app/src/main/java/com/fabledsword/minstrel/player/output/OutputPickerController.kt

@@ -24,11 +24,11 @@ data class RouteSnapshot(
 
 /**
  * Hilt-singleton facade over [MediaRouter]. Owns the callback
- * lifecycle — passive discovery at process start (route list updates
- * without forcing Bluetooth scans), upgrades to active discovery
- * while the picker sheet is open so newly-paired devices appear
- * promptly. The [routesState] StateFlow projects the current route
- * + sorted available list as a [RouteSnapshot]; the picker
+ * lifecycle — default passive behavior at process start (route list
+ * updates without forcing Bluetooth scans), upgrades to active
+ * discovery while the picker sheet is open so newly-paired devices
+ * appear promptly. The [routesState] StateFlow projects the current
+ * route + sorted available list as a [RouteSnapshot]; the picker
  * ViewModel collects it.
  *
  * Mirrors the OutputPickerController role described in
@@ -71,7 +71,12 @@ class OutputPickerController @Inject constructor(
     }
 
     init {
-        mediaRouter.addCallback(selector, callback, MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY)
+        // Two-arg addCallback registers with no discovery flag —
+        // androidx.mediarouter 1.7.0's default passive behavior:
+        // route-list updates flow through onRouteAdded/Removed/Changed
+        // without forcing Bluetooth scans. (There is no
+        // CALLBACK_FLAG_PASSIVE_DISCOVERY constant; absent flag = passive.)
+        mediaRouter.addCallback(selector, callback)
     }
 
     /**
@@ -85,12 +90,13 @@ class OutputPickerController @Inject constructor(
     }
 
     /**
-     * Downgrade callback registration back to passive — call when the
-     * picker sheet closes so we don't keep Bluetooth scanning on for
-     * battery cost. Same idempotent re-registration semantics.
+     * Downgrade callback registration back to default passive behavior
+     * — call when the picker sheet closes so we don't keep Bluetooth
+     * scanning on for battery cost. Two-arg overload = no flag =
+     * passive. Same idempotent re-registration semantics.
      */
     fun downgradeDiscovery() {
-        mediaRouter.addCallback(selector, callback, MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY)
+        mediaRouter.addCallback(selector, callback)
     }
 
     /**

android/app/src/main/java/com/fabledsword/minstrel/player/ui/NowPlayingScreen.kt

@@ -284,29 +284,41 @@ private fun NowPlayingBody(
     val outputViewModel: OutputPickerViewModel = hiltViewModel()
     val routes by outputViewModel.routes.collectAsStateWithLifecycle()
     val sheetVisible by outputViewModel.sheetVisible.collectAsStateWithLifecycle()
+    val permissionDenied = rememberBluetoothPermissionState(sheetVisible)
+    NowPlayingContent(
+        inner = inner,
+        state = state,
+        track = track,
+        navController = navController,
+        viewModel = viewModel,
+        trackActionsViewModel = trackActionsViewModel,
+        routes = routes,
+        isLiked = isLiked,
+        onChipTapped = outputViewModel::onChipTapped,
+    )
+    if (sheetVisible) {
+        OutputPickerSheet(
+            snapshot = routes,
+            permissionDenied = permissionDenied,
+            onRouteSelected = outputViewModel::onRouteSelected,
+            onDismiss = outputViewModel::onSheetDismissed,
+        )
+    }
+}
 
-    // One-shot BLUETOOTH_CONNECT permission flow. The launcher is
-    // remembered across recompositions; the LaunchedEffect fires
-    // exactly once when the sheet opens for the first time per
-    // composition. Subsequent opens are no-ops; the system remembers
-    // the user's choice.
-    val context = LocalContext.current
-    var permissionDenied by remember { mutableStateOf(false) }
-    val permissionLauncher = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.RequestPermission(),
-    ) { granted ->
-        permissionDenied = !granted
-    }
-    LaunchedEffect(sheetVisible) {
-        if (sheetVisible &&
-            ContextCompat.checkSelfPermission(
-                context,
-                Manifest.permission.BLUETOOTH_CONNECT,
-            ) != PackageManager.PERMISSION_GRANTED
-        ) {
-            permissionLauncher.launch(Manifest.permission.BLUETOOTH_CONNECT)
-        }
-    }
+@Composable
+@Suppress("LongParameterList") // mirrors NowPlayingBody — pure layout wiring
+private fun NowPlayingContent(
+    inner: androidx.compose.foundation.layout.PaddingValues,
+    state: com.fabledsword.minstrel.player.PlayerUiState,
+    track: com.fabledsword.minstrel.models.TrackRef,
+    navController: NavHostController,
+    viewModel: PlayerViewModel,
+    trackActionsViewModel: TrackActionsViewModel,
+    routes: RouteSnapshot,
+    isLiked: Boolean,
+    onChipTapped: () -> Unit,
+) {
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -341,37 +353,78 @@ private fun NowPlayingBody(
             Spacer(Modifier.height(8.dp))
             DeviceChip(
                 route = routes.current,
-                onClick = outputViewModel::onChipTapped,
+                onClick = onChipTapped,
                 modifier = Modifier.align(Alignment.CenterHorizontally),
             )
         }
         Spacer(Modifier.height(4.dp))
-        val smoothPositionMs by rememberSmoothPositionMs(
-            positionMs = state.positionMs,
-            durationMs = state.durationMs,
-            isPlaying = state.isPlaying,
-        )
-        ScrubberRow(
-            positionMs = smoothPositionMs,
-            durationMs = state.durationMs,
-            onSeek = viewModel::seekTo,
-        )
-        Spacer(Modifier.height(4.dp))
-        TransportRow(
-            isPlaying = state.isPlaying,
-            onPrev = viewModel::skipToPrevious,
-            onPlayPause = { if (state.isPlaying) viewModel.pause() else viewModel.play() },
-            onNext = viewModel::skipToNext,
-        )
+        PlaybackControlsBlock(state = state, viewModel = viewModel)
     }
-    if (sheetVisible) {
-        OutputPickerSheet(
-            snapshot = routes,
-            permissionDenied = permissionDenied,
-            onRouteSelected = outputViewModel::onRouteSelected,
-            onDismiss = outputViewModel::onSheetDismissed,
-        )
+}
+
+/**
+ * Scrubber + transport pair, sharing the smoothed playback position.
+ * Extracted from [NowPlayingContent] to keep that body under detekt's
+ * LongMethod ceiling — the two rows belong together (the scrubber's
+ * smoothed position would otherwise need to be hoisted into the
+ * caller just to thread it into the row below).
+ */
+@Composable
+private fun PlaybackControlsBlock(
+    state: com.fabledsword.minstrel.player.PlayerUiState,
+    viewModel: PlayerViewModel,
+) {
+    val smoothPositionMs by rememberSmoothPositionMs(
+        positionMs = state.positionMs,
+        durationMs = state.durationMs,
+        isPlaying = state.isPlaying,
+    )
+    ScrubberRow(
+        positionMs = smoothPositionMs,
+        durationMs = state.durationMs,
+        onSeek = viewModel::seekTo,
+    )
+    Spacer(Modifier.height(4.dp))
+    TransportRow(
+        isPlaying = state.isPlaying,
+        onPrev = viewModel::skipToPrevious,
+        onPlayPause = { if (state.isPlaying) viewModel.pause() else viewModel.play() },
+        onNext = viewModel::skipToNext,
+    )
+}
+
+/**
+ * One-shot BLUETOOTH_CONNECT permission flow tied to picker-sheet
+ * visibility. The launcher is remembered across recompositions; the
+ * LaunchedEffect fires when the sheet opens and the permission is not
+ * already granted. Subsequent opens are no-ops once the user has
+ * answered — the system remembers their choice. Returns whether the
+ * user explicitly denied, so the sheet can surface the rationale row.
+ *
+ * Extracted from [NowPlayingBody] to keep that body under detekt's
+ * LongMethod ceiling — the permission plumbing is incidental to the
+ * player layout.
+ */
+@Composable
+private fun rememberBluetoothPermissionState(sheetVisible: Boolean): Boolean {
+    val context = LocalContext.current
+    var permissionDenied by remember { mutableStateOf(false) }
+    val permissionLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+    ) { granted ->
+        permissionDenied = !granted
     }
+    LaunchedEffect(sheetVisible) {
+        if (sheetVisible &&
+            ContextCompat.checkSelfPermission(
+                context,
+                Manifest.permission.BLUETOOTH_CONNECT,
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissionLauncher.launch(Manifest.permission.BLUETOOTH_CONNECT)
+        }
+    }
+    return permissionDenied
 }
 
 private fun shouldShowChip(snapshot: RouteSnapshot): Boolean {