新增epub书摘，高亮文字，适配平板

lib/pages/recycle_bin_page.dart

@@ -362,6 +362,35 @@ class _RecycleBinPageState extends State<RecycleBinPage> {
   }
 
   Future<void> _restore(_DeletedItem item) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        backgroundColor: Theme.of(context).colorScheme.surface,
+        elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+        title: Text('确认恢复', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Theme.of(context).colorScheme.onSurface)),
+        content: Text('确定要恢复"${item.title}"到${item.typeLabel}里面吗？', style: TextStyle(fontSize: 14, color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.6), height: 1.5)),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx, false),
+            style: TextButton.styleFrom(foregroundColor: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.6)),
+            child: const Text('取消'),
+          ),
+          ElevatedButton(
+            onPressed: () => Navigator.pop(ctx, true),
+            style: ElevatedButton.styleFrom(
+              backgroundColor: Theme.of(context).colorScheme.primary,
+              foregroundColor: Theme.of(context).colorScheme.onPrimary,
+              elevation: 0,
+              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
+            ),
+            child: const Text('恢复'),
+          ),
+        ],
+        actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+      ),
+    );
+    if (confirmed != true || !mounted) return;
     final provider = context.read<AppProvider>();
     switch (item.type) {
       case _ItemType.movie: