ios: Liquid Glass mini player, adjustable karaoke softness (1.0.7)

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

ios/Stemify/UI/Screens/SettingsScreens.swift

@@ -30,6 +30,32 @@ private struct ToggleCell: View {
     }
 }
 
+/// How quiet karaoke's Soft vocals are.
+private struct SoftVocalsCell: View {
+    @Environment(\.palette) private var p
+    private var g: AppGraph { .shared }
+    var body: some View {
+        let db = g.settings.karaokeSoftDb
+        VStack(alignment: .leading, spacing: 8) {
+            HStack(spacing: 14) {
+                SettingsIcon(symbol: "music.mic", bg: 0xFA2D48)
+                Text("Karaoke Soft Vocals").foregroundStyle(p.label)
+                Spacer()
+                Text("\(db) dB").monospacedDigit().foregroundStyle(p.label2)
+            }
+            Slider(value: Binding(get: { Double(db) }, set: { g.playback.setKaraokeSoftDb(Int($0.rounded())) }), in: -30...(-3), step: 1) {
+                Text("Karaoke Soft Vocals")
+            } minimumValueLabel: {
+                Text("Quieter").font(.caption).foregroundStyle(p.label2)
+            } maximumValueLabel: {
+                Text("Louder").font(.caption).foregroundStyle(p.label2)
+            }
+        }
+        .padding(.vertical, 4)
+        .themedRow()
+    }
+}
+
 /// A tappable row in the accent (or red), optionally centred.
 private struct ActionCell: View {
     let title: String
@@ -115,6 +141,7 @@ struct SettingsScreen: View {
                 NavCell(title: "Equalizer", value: !g.eq.state.enabled ? "Off" : g.eq.active?.name ?? "On", icon: "slider.vertical.3", iconBg: 0x34C759, route: .Eq)
                 NavCell(title: "Stem Quality", value: s.stemQuality.label, icon: "gauge.with.dots.needle.67percent", iconBg: 0xFF2D55, route: .Quality)
                 ToggleCell(title: "Keep Stem Mix Between Songs", icon: "speaker.wave.2.fill", iconBg: 0x5856D6, isOn: $s.keepStemMix)
+                SoftVocalsCell()
             } header: { Header(text: "Sound") }
             Section {
                 NavCell(title: "Cache & Downloads", value: gb(g.cache.usage.cachedBytes), icon: "externaldrive.fill", iconBg: 0x8E8E93, route: .Storage)