UI 복잡 버전 234 RED→GREEN 완료(docs/UI_USECASES.md §A~§J): 라이브 테마 전환(DynamicResource 전환+ThemeResolver+HighContrast 테마, 재시작 없음), 디자인 토큰 체계·WCAG 대비 결함 5건 수정, 설정창 카테고리 내비/검색 재구성+AppConfig 40여 속성, 다운로드 관리자(속도/ETA/세그먼트맵/전체 일시정지-이어받기/CSV 내보내기/예약 게이트/중복 확인), 라이브러리·아카이브·작업공간·재생목록·즐겨찾기 편집 뷰, 접근성(자동화 속성 30여 개·커스텀 피어·docs/ACCESSIBILITY.md), 인터랙션(휠 클릭 새 탭·XButton 탐색·F12·영역 캡처·프로필 전환), 상태/알림(토스트·알림센터·온보딩·CrashReportDialog). 보강 테스트 35건+실창 E2E 4건(StaDispatcher 기반 — 프록시 설정이 기시작 핸들러를 건드리는 크래시 실결함 수정 포함) — 453/453 GREEN. 이전 미커밋 작업(CI 워크플로·Mdns·QueueHub·UpdateChecker·AGENTS/CLAUDE·빌드 스크립트) 일괄 포함

VideoDownloader.App/BookmarkManagerWindow.xaml

@@ -0,0 +1,47 @@
+<Window x:Class="VideoDownloader.App.BookmarkManagerWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="즐겨찾기 관리" Height="520" Width="640"
+        FontFamily="{DynamicResource UiFont}"
+        Background="{DynamicResource WindowBgGradient}"
+        WindowStartupLocation="CenterOwner" ShowInTaskbar="False">
+    <Grid Margin="16">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="Auto"/>
+        </Grid.RowDefinitions>
+
+        <!-- UC-M18 즐겨찾기 검색 -->
+        <DockPanel Grid.Row="0" Margin="0,0,0,10">
+            <TextBlock Text="이름 또는 URL 검색" Foreground="{DynamicResource TextMuted}" VerticalAlignment="Center" Margin="0,0,8,0"/>
+            <TextBox x:Name="SearchBox" Style="{StaticResource DarkTextBox}" TextChanged="SearchBox_TextChanged"/>
+        </DockPanel>
+
+        <ListView x:Name="List" Grid.Row="1" Background="Transparent" BorderThickness="0"
+                  Foreground="{DynamicResource TextPrimary}"
+                  SelectionMode="Extended" KeyDown="List_KeyDown">
+            <ListView.ItemTemplate>
+                <DataTemplate>
+                    <DockPanel Margin="0,3">
+                        <StackPanel DockPanel.Dock="Right" Orientation="Horizontal">
+                            <Button Style="{StaticResource CardActionButton}" Content="편집" Click="Edit_Click" Margin="4,0,0,0"/>
+                            <Button Style="{StaticResource CardActionButton}" Content="삭제" Click="Delete_Click" Margin="4,0,0,0"/>
+                        </StackPanel>
+                        <StackPanel>
+                            <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis" FontWeight="Medium"/>
+                            <TextBlock Text="{Binding Url}" Foreground="{DynamicResource TextMuted}" FontSize="10.5" TextTrimming="CharacterEllipsis"/>
+                        </StackPanel>
+                    </DockPanel>
+                </DataTemplate>
+            </ListView.ItemTemplate>
+        </ListView>
+
+        <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right" Margin="0,12,0,0">
+            <!-- UC-M19 Netscape 북마크 HTML 내보내기/가져오기 -->
+            <Button Style="{StaticResource GhostButton}" Content="HTML 내보내기" Click="Export_Click" Margin="0,0,8,0"/>
+            <Button Style="{StaticResource GhostButton}" Content="HTML 가져오기" Click="Import_Click" Margin="0,0,8,0"/>
+            <Button Style="{StaticResource PrimaryButton}" Content="닫기" Width="90" Click="Close_Click"/>
+        </StackPanel>
+    </Grid>
+</Window>