style(android): extract CoverPlaceholder + TrackHeader to satisfy detekt LongMethod

NowPlayingScreen was 74 lines vs detekt's 60 threshold. Split into
three logical pieces: CoverPlaceholder, TrackHeader, and the
top-level Column orchestrator (which now stays under threshold and
reads more clearly).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -64,7 +64,6 @@ fun NowPlayingScreen(
         )
         return
     }
-
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -72,6 +71,31 @@ fun NowPlayingScreen(
         verticalArrangement = Arrangement.Center,
         horizontalAlignment = Alignment.CenterHorizontally,
     ) {
+        CoverPlaceholder()
+        Spacer(Modifier.height(24.dp))
+        TrackHeader(
+            title = track.title,
+            artist = track.artistName,
+            album = track.albumTitle,
+        )
+        Spacer(Modifier.height(24.dp))
+        ScrubberRow(
+            positionMs = state.positionMs,
+            durationMs = state.durationMs,
+            onSeek = viewModel::seekTo,
+        )
+        Spacer(Modifier.height(8.dp))
+        TransportRow(
+            isPlaying = state.isPlaying,
+            onPrev = viewModel::skipToPrevious,
+            onPlayPause = { if (state.isPlaying) viewModel.pause() else viewModel.play() },
+            onNext = viewModel::skipToNext,
+        )
+    }
+}
+
+@Composable
+private fun CoverPlaceholder() {
     Box(
         modifier = Modifier
             .widthIn(max = COVER_MAX_WIDTH_DP.dp)
@@ -87,9 +111,12 @@ fun NowPlayingScreen(
             modifier = Modifier.size(96.dp),
         )
     }
-        Spacer(Modifier.height(24.dp))
+}
+
+@Composable
+private fun TrackHeader(title: String, artist: String, album: String) {
     Text(
-            text = track.title,
+        text = title,
         style = MaterialTheme.typography.headlineMedium,
         color = MaterialTheme.colorScheme.onBackground,
         textAlign = TextAlign.Center,
@@ -97,16 +124,16 @@ fun NowPlayingScreen(
         overflow = TextOverflow.Ellipsis,
     )
     Text(
-            text = track.artistName,
+        text = artist,
         style = MaterialTheme.typography.titleMedium,
         color = MaterialTheme.colorScheme.onSurfaceVariant,
         textAlign = TextAlign.Center,
         maxLines = 1,
         overflow = TextOverflow.Ellipsis,
     )
-        if (track.albumTitle.isNotEmpty()) {
+    if (album.isNotEmpty()) {
         Text(
-                text = track.albumTitle,
+            text = album,
             style = MaterialTheme.typography.bodyMedium,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
             textAlign = TextAlign.Center,
@@ -114,20 +141,6 @@ fun NowPlayingScreen(
             overflow = TextOverflow.Ellipsis,
         )
     }
-        Spacer(Modifier.height(24.dp))
-        ScrubberRow(
-            positionMs = state.positionMs,
-            durationMs = state.durationMs,
-            onSeek = viewModel::seekTo,
-        )
-        Spacer(Modifier.height(8.dp))
-        TransportRow(
-            isPlaying = state.isPlaying,
-            onPrev = viewModel::skipToPrevious,
-            onPlayPause = { if (state.isPlaying) viewModel.pause() else viewModel.play() },
-            onNext = viewModel::skipToNext,
-        )
-    }
 }
 
 @Composable