fix(flutter): 隐藏视频常驻调试文字

lib/pages/player/widgets/player_video_surface.dart

@@ -7,9 +7,6 @@ import 'package:video_player/video_player.dart';
 import '../../../core/widgets/remote_image.dart';
 
 const Duration _videoFadeDuration = Duration(milliseconds: 200);
-const double _debugRight = 8;
-const double _debugBottom = 8;
-const double _debugFontSize = 11;
 const double _errorHorizontal = 32;
 const int _errorMaxLines = 3;
 
@@ -75,27 +72,6 @@ class _PlayerVideoSurfaceState extends State<PlayerVideoSurface> {
                 )
               : const SizedBox.expand(),
         ),
-        if (kDebugMode)
-          Positioned(
-            right: _debugRight,
-            bottom: _debugBottom,
-            child: DecoratedBox(
-              decoration: const BoxDecoration(color: Color(0x99000000)),
-              child: Padding(
-                padding: const EdgeInsets.symmetric(horizontal: 5, vertical: 2),
-                child: Text(
-                  _debugStatus(value),
-                  key: const Key('player-debug-video'),
-                  maxLines: 1,
-                  overflow: TextOverflow.ellipsis,
-                  style: const TextStyle(
-                    color: Colors.white70,
-                    fontSize: _debugFontSize,
-                  ),
-                ),
-              ),
-            ),
-          ),
         if (kDebugMode && value?.hasError == true)
           Center(
             child: Padding(

test/player/player_video_surface_test.dart

@@ -15,10 +15,7 @@ void main() {
     expect(find.byKey(const Key('player-fallback-background')), findsOneWidget);
     expect(find.byKey(const Key('player-fallback-cover')), findsOneWidget);
     expect(_opacity(tester), 0);
-    expect(
-      tester.widget<Text>(find.byKey(const Key('player-debug-video'))).data,
-      'loading',
-    );
+    expect(find.byKey(const Key('player-debug-video')), findsNothing);
   });
 
   testWidgets('should_fade_video_in_within_200ms_after_first_frame', (
@@ -52,6 +49,7 @@ void main() {
     await tester.pump(const Duration(milliseconds: 100));
     expect(_fadeValue(tester), 1);
     expect(find.byKey(const Key('player-fallback-background')), findsOneWidget);
+    expect(find.byKey(const Key('player-debug-video')), findsNothing);
   });
 
   testWidgets('should_show_video_error_above_retained_fallback', (
@@ -66,10 +64,7 @@ void main() {
     expect(find.text('No route to host'), findsOneWidget);
     expect(find.byKey(const Key('player-fallback-background')), findsOneWidget);
     expect(_opacity(tester), 0);
-    expect(
-      tester.widget<Text>(find.byKey(const Key('player-debug-video'))).data,
-      'error: No route to host',
-    );
+    expect(find.byKey(const Key('player-debug-video')), findsNothing);
   });
 }