Drive macOS player control bars from presets

Render the macOS control bar button row and top bar from the active
preset's sections via a new MacOSControlsSectionRenderer, replacing the
hardcoded QuickTime-style rows in MacOSControlBar. Add a keepOnTop
button type and macOS-specific button availability lists, and adapt the
player controls settings editors (preset editor, section editor, button
configuration) for macOS.

Also apply the preset font style to the control bar time labels, and
update the built-in macOS Default preset order (queue before transport,
fullscreen at the end), bumping builtInPresetsVersion to 7.

Yattee/Views/Player/PlayerControlsActions.swift

@@ -7,10 +7,11 @@
 
 import SwiftUI
 
-#if os(iOS)
+#if os(iOS) || os(macOS)
 
 /// Consolidated actions and state for player control buttons.
-/// Used by `ControlsSectionRenderer` to render buttons dynamically.
+/// Used by `ControlsSectionRenderer` (iOS) and `MacOSControlsSectionRenderer`
+/// (macOS) to render buttons dynamically.
 @MainActor
 struct PlayerControlsActions {
     // MARK: - State
@@ -27,20 +28,26 @@ struct PlayerControlsActions {
     /// Whether the video is widescreen aspect ratio
     let isWidescreenVideo: Bool
 
+    #if os(iOS)
     /// Whether orientation is locked
     let isOrientationLocked: Bool
+    #endif
 
     /// Whether the side panel is visible
     let isPanelVisible: Bool
 
+    #if os(iOS)
     /// Whether the side panel is pinned (iPad landscape)
     let isPanelPinned: Bool
+    #endif
 
     /// Which side the panel is on
     let panelSide: FloatingPanelSide
 
+    #if os(iOS)
     /// Whether running on iPad
     let isIPad: Bool
+    #endif
 
     /// Whether volume controls should show (mpv mode)
     let showVolumeControls: Bool
@@ -69,11 +76,13 @@ struct PlayerControlsActions {
     /// Current audio stream
     let currentAudioStream: Stream?
 
+    #if os(iOS)
     /// Current panscan value (0.0 = fit, 1.0 = fill)
     let panscanValue: Double
 
     /// Whether panscan change is currently allowed
     let isPanscanAllowed: Bool
+    #endif
 
     /// Whether auto-play next is enabled
     let isAutoPlayNextEnabled: Bool
@@ -101,14 +110,18 @@ struct PlayerControlsActions {
     /// Toggle details visibility (portrait fullscreen)
     var onToggleDetailsVisibility: (() -> Void)?
 
+    #if os(iOS)
     /// Toggle orientation lock
     var onToggleOrientationLock: (() -> Void)?
+    #endif
 
     /// Toggle side panel
     var onTogglePanel: (() -> Void)?
 
+    #if os(iOS)
     /// Toggle panscan between 0 and 1
     var onTogglePanscan: (() -> Void)?
+    #endif
 
     /// Toggle auto-play next in queue
     var onToggleAutoPlayNext: (() -> Void)?
@@ -213,6 +226,17 @@ struct PlayerControlsActions {
         playerState.pipState == .active ? "pip.exit" : "pip.enter"
     }
 
+    #if os(macOS)
+    /// Fullscreen icon based on current state (no rotation semantics on macOS).
+    var fullscreenIcon: String {
+        isFullscreen ? "arrow.down.right.and.arrow.up.left" : "arrow.up.left.and.arrow.down.right"
+    }
+
+    /// Whether the fullscreen button should be shown
+    var shouldShowFullscreenButton: Bool {
+        onToggleFullscreen != nil
+    }
+    #else
     /// Fullscreen icon based on current state.
     /// Uses rotation icons when tapping will cause device rotation,
     /// otherwise uses standard fullscreen arrows.
@@ -278,6 +302,7 @@ struct PlayerControlsActions {
 
         return showFullscreenButton && hasFullscreenAction && !isPinnedPanelActive
     }
+    #endif
 
     /// Whether PiP button should be enabled
     var isPiPAvailable: Bool {