feat(flutter): 应用克莱因蓝主题与印尼语适配

lib/pages/downloads/downloads_page.dart

@@ -10,7 +10,9 @@ import '../../core/data/models/download_policy.dart';
 import '../../core/data/services/auth_controller.dart';
 import '../../core/data/services/download_controller.dart';
 import '../../core/formatting/error_text.dart';
+import '../../core/formatting/localized_date_time.dart';
 import '../../core/theme/app_colors.dart';
+import '../../core/theme/app_theme.dart';
 import '../../core/widgets/auth_gate.dart';
 import '../../l10n/app_localizations.dart';
 import 'downloads_binding.dart';
@@ -46,17 +48,20 @@ class _DownloadsPageState extends State<DownloadsPage> {
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
     final signedIn = context.watch<AuthController>().isSignedIn;
-    return Scaffold(
-      key: const Key('downloads-page'),
-      backgroundColor: const Color(0xFF0B0C10),
-      appBar: AppBar(
+    return Theme(
+      data: AppTheme.dark(),
+      child: Scaffold(
+        key: const Key('downloads-page'),
         backgroundColor: const Color(0xFF0B0C10),
-        foregroundColor: Colors.white,
-        title: Text(l10n.downloads),
+        appBar: AppBar(
+          backgroundColor: const Color(0xFF0B0C10),
+          foregroundColor: Colors.white,
+          title: Text(l10n.downloads),
+        ),
+        body: signedIn
+            ? _DownloadsBody(downloads: context.watch<DownloadController>())
+            : const AuthGatePanel(),
       ),
-      body: signedIn
-          ? _DownloadsBody(downloads: context.watch<DownloadController>())
-          : const AuthGatePanel(),
     );
   }
 }
@@ -380,7 +385,9 @@ class _LicenseTile extends StatelessWidget {
           if (license.expireAt != null) ...[
             const SizedBox(height: 7),
             Text(
-              l10n.downloadExpiresAt(_formatTime(license.expireAt!)),
+              l10n.downloadExpiresAt(
+                formatLocalizedDateTime(context, license.expireAt!),
+              ),
               style: const TextStyle(color: Color(0xFF8D8990), fontSize: 11),
             ),
           ],
@@ -398,12 +405,3 @@ List<String> _qualityChoices(String current) {
   }
   return choices;
 }
-
-String _formatTime(DateTime value) {
-  final local = value.toLocal();
-  final month = local.month.toString().padLeft(2, '0');
-  final day = local.day.toString().padLeft(2, '0');
-  final hour = local.hour.toString().padLeft(2, '0');
-  final minute = local.minute.toString().padLeft(2, '0');
-  return '${local.year}-$month-$day $hour:$minute';
-}