Add details panel preset settings UI and default visibility

Phase 2 of the player panels redesign:

- New "Details Panel" screen in Player Controls settings: page
  reorder/enable list with per-page editor (info element toggles),
  and a default panel visibility picker (hidden/visible/remember).
- PlayerControlsSettingsViewModel gains panelSettings bindings with
  the usual debounced-save flow; the last enabled page cannot be
  disabled.
- Built-in presets bumped to v9 with explicit default panelSettings.
- The preset's default visibility now drives the wide-layout panel
  on player open and on entering landscape, replacing the hard
  hidden resets; "remember" restores the new detailsPanelLastVisible
  setting recorded on user toggles. Applied once per expanded player
  session (flag on NavigationCoordinator survives re-mounts).
- WideScreenPlayerLayout picks up external visibility writes so the
  async-loaded default reaches the mounted layout.
- Unit tests for PanelSettings Codable compatibility (round-trip,
  old JSON, unknown page types/discriminators/enum values); removed
  stale PlayerInfoTab tests left from Phase 1.

Yattee/Models/PlayerControls/BuiltInPresets.swift

@@ -11,7 +11,7 @@ extension LayoutPreset {
     /// Bump this version whenever any built-in preset definition changes.
     /// On launch, the app compares this against the last-applied version
     /// and replaces stale built-in presets with fresh copies from code.
-    static let builtInPresetsVersion = 8
+    static let builtInPresetsVersion = 9
 
     // MARK: - Built-in Preset IDs
 
@@ -131,7 +131,8 @@ extension LayoutPreset {
             progressBarSettings: ProgressBarSettings(),
             gesturesSettings: gesturesSettings,
             playerPillSettings: playerPillSettings,
-            miniPlayerSettings: miniPlayerSettings
+            miniPlayerSettings: miniPlayerSettings,
+            panelSettings: .default
         )
     }
 
@@ -192,7 +193,8 @@ extension LayoutPreset {
             progressBarSettings: ProgressBarSettings(),
             gesturesSettings: nil,
             playerPillSettings: nil,
-            miniPlayerSettings: MiniPlayerSettings()
+            miniPlayerSettings: MiniPlayerSettings(),
+            panelSettings: .default
         )
     }
 
@@ -285,7 +287,8 @@ extension LayoutPreset {
             progressBarSettings: progressBarSettings,
             gesturesSettings: gesturesSettings,
             playerPillSettings: playerPillSettings,
-            miniPlayerSettings: miniPlayerSettings
+            miniPlayerSettings: miniPlayerSettings,
+            panelSettings: .default
         )
     }
 
@@ -336,7 +339,8 @@ extension LayoutPreset {
             progressBarSettings: progressBarSettings,
             gesturesSettings: nil,
             playerPillSettings: nil,
-            miniPlayerSettings: MiniPlayerSettings()
+            miniPlayerSettings: MiniPlayerSettings(),
+            panelSettings: .default
         )
     }