iOS 1.0 RC 2: Plex streams under upload caps, shuffle and album radio stations, Recently Added list, photo covers, crossfade

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

ios/Stemify/UI/Screens/SettingsScreens.swift

@@ -31,6 +31,29 @@ private struct ToggleCell: View {
     }
 }
 
+/// Crossfade length and the same-album exception.
+private struct CrossfadeCells: View {
+    @Environment(\.palette) private var p
+    private var g: AppGraph { .shared }
+    var body: some View {
+        @Bindable var s = g.settings
+        Picker(selection: Binding(get: { s.crossfadeSec }, set: { s.crossfadeSec = $0; g.playback.crossfadeChanged() })) {
+            Text("Off").tag(0)
+            ForEach(1...12, id: \.self) { Text("\($0) s").tag($0) }
+        } label: {
+            HStack(spacing: 14) {
+                SettingsIcon(symbol: "arrow.left.arrow.right", bg: 0xFF9500)
+                Text("Crossfade").foregroundStyle(p.label)
+            }
+        }
+        .themedRow()
+        if s.crossfadeSec > 0 {
+            ToggleCell(title: "Sweet Fades", icon: "rectangle.stack.fill", iconBg: 0xFF9500,
+                       isOn: Binding(get: { s.sweetFades }, set: { s.sweetFades = $0; g.playback.crossfadeChanged() }))
+        }
+    }
+}
+
 /// How quiet karaoke's Soft vocals are.
 private struct SoftVocalsCell: View {
     @Environment(\.palette) private var p
@@ -203,6 +226,7 @@ struct SettingsScreen: View {
                 NavCell(title: "Stem Editor", value: s.lockedPreset.isEmpty ? nil : "Locked", icon: "slider.horizontal.3", iconBg: 0xAF52DE, route: .StemEditor)
                 NavCell(title: "Stem Quality", value: s.stemQuality.label, icon: "gauge.with.dots.needle.67percent", iconBg: 0xFF2D55, route: .Quality)
                 ToggleCell(title: "Keep Mix Between Songs", icon: "speaker.wave.2.fill", iconBg: 0x5856D6, isOn: $s.keepStemMix)
+                CrossfadeCells()
                 SoftVocalsCell()
             } header: { Header(text: "Listening") }
             Section {