Revert video player to fullScreen - fixes playback controls

Reverted video player back to .fullScreen presentation:
- Changed @Route(.push) back to @Route(.fullScreen)
- Added NavigationViewCoordinator wrapper back
- Changed router.popLast() back to router.dismissCoordinator()

Video player MUST use fullScreen to:
✅ Properly stop playback on dismiss
✅ Show overlay controls on first ESC
✅ Exit and stop video on second ESC
✅ Prevent video playing in background after navigation

Files reverted:
- ItemCoordinator.swift: Video player route and factory
- Overlay.swift: dismissCoordinator on confirm close
- VideoPlayer.swift: dismissCoordinator on video end
- LoadingView.swift: dismissCoordinator on cancel

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Shared/Coordinators/ItemCoordinator.swift

@@ -40,7 +40,7 @@ final class ItemCoordinator: NavigationCoordinatable {
     var itemOverview = makeItemOverview
     @Route(.fullScreen)
     var mediaSourceInfo = makeMediaSourceInfo
-    @Route(.push)
+    @Route(.fullScreen)
     var videoPlayer = makeVideoPlayer
     #endif
 
@@ -90,8 +90,8 @@ final class ItemCoordinator: NavigationCoordinatable {
     #endif
 
     #if os(tvOS)
-    func makeVideoPlayer(manager: VideoPlayerManager) -> VideoPlayerCoordinator {
-        VideoPlayerCoordinator(manager: manager)
+    func makeVideoPlayer(manager: VideoPlayerManager) -> NavigationViewCoordinator<VideoPlayerCoordinator> {
+        NavigationViewCoordinator(VideoPlayerCoordinator(manager: manager))
     }
     #endif
 

jellypig tvOS/Views/VideoPlayer/Components/LoadingView.swift

@@ -28,7 +28,7 @@ extension VideoPlayer {
                     ProgressView()
 
                     Button {
-                        router.popLast()
+                        router.dismissCoordinator()
                     } label: {
                         Text(L10n.cancel)
                             .foregroundColor(.red)

jellypig tvOS/Views/VideoPlayer/Overlays/Overlay.swift

@@ -110,7 +110,7 @@ extension VideoPlayer {
 
             if isPresentingOverlay && currentOverlayType == .confirmClose {
                 proxy.stop()
-                router.popLast()
+                router.dismissCoordinator()
             } else if isPresentingOverlay && currentOverlayType == .smallMenu {
                 currentOverlayType = .main
             } else {

jellypig tvOS/Views/VideoPlayer/VideoPlayer.swift

@@ -60,7 +60,7 @@ struct VideoPlayer: View {
                         {
                             videoPlayerManager.selectNextViewModel()
                         } else {
-                            router.popLast()
+                            router.dismissCoordinator()
                         }
                     }
                 }