feat: 保留系统开屏并更新品牌素材

lib/pages/home/home_view.dart

@@ -43,8 +43,6 @@ class HomePage extends StatefulWidget {
 }
 
 class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
-  static const _splashAsset = 'assets/icon/splash_logo.png';
-
   bool _resumeRetryInFlight = false;
   HomeFeedController? _homeFeed;
   bool _recommendSeeded = false;
@@ -111,7 +109,7 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
     AppLocalizations l10n,
   ) {
     if (catalog.loading) {
-      return catalog.settled ? _retryLoading() : _startupSplash();
+      return _retryLoading();
     }
     if (catalog.error != null) {
       return Scaffold(
@@ -158,23 +156,6 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
     }
   }
 
-  Widget _startupSplash() {
-    return AnnotatedRegion<SystemUiOverlayStyle>(
-      value: SystemUiOverlayStyle.light,
-      child: ColoredBox(
-        color: AppColors.mediaBlack,
-        child: Center(
-          child: Image.asset(
-            _splashAsset,
-            key: const Key('startup-splash'),
-            width: 200,
-            fit: BoxFit.contain,
-          ),
-        ),
-      ),
-    );
-  }
-
   Widget _retryLoading() {
     return AnnotatedRegion<SystemUiOverlayStyle>(
       value: SystemUiOverlayStyle.light,