Initial commit: BARON SSO 샘플 (WebView OIDC PKCE 인증 라이브러리 + 데모 앱)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

BaronSoftware.SSO.Sample/MainWindow.xaml

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+<Window x:Class="BaronSoftware.SSO.Sample.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:BaronSoftware.SSO.Sample"
+        mc:Ignorable="d"
+        Title="BARON SSO 웹뷰 인증 샘플" Height="560" Width="840">
+    <Grid Margin="16">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+
+        <TextBlock Grid.Row="0"
+                   Text="BARON SSO (Ory Hydra · OIDC Authorization Code + PKCE) 웹뷰 인증 데모"
+                   FontSize="16" FontWeight="Bold" Margin="0,0,0,12"/>
+
+        <StackPanel Grid.Row="1" Orientation="Horizontal" Margin="0,0,0,12">
+            <Button x:Name="LoginButton" Content="웹뷰로 로그인" Width="140" Height="34"
+                    Click="LoginButton_Click"/>
+            <Button x:Name="TokenLoginBuggon" Content="토큰 로그인" Width="150" Height="34"
+                    Margin="8,0,0,0" Click="TokenLoginBuggon_Click"/>
+            <Button x:Name="LogoutButton" Content="로그아웃" Width="100" Height="34"
+                    Margin="8,0,0,0" Click="LogoutButton_Click"/>
+            <Button x:Name="SettingsButton" Content="설정 변경" Width="90" Height="34"
+                    Margin="8,0,0,0" Click="SettingsButton_Click"/>
+        </StackPanel>
+
+        <Border Grid.Row="2" BorderBrush="#DDDDDD" BorderThickness="1" CornerRadius="4">
+            <TextBox x:Name="OutputBox" IsReadOnly="True" BorderThickness="0" Padding="10"
+                     FontFamily="Consolas" FontSize="13" TextWrapping="Wrap"
+                     VerticalScrollBarVisibility="Auto"
+                     Text="‘웹뷰로 로그인’ → 토큰 저장 → 다음 실행 시 ‘자동 로그인(갱신)’.&#x0a;&#x0a;[콘솔 사전 설정 2가지]&#x0a; 1) 리디렉션 URI 설정 → 인증 콜백 URL 에 추가:&#x0a;      http://127.0.0.1:8421/baron-sample/auth/callback&#x0a; 2) 스코프 추가 → 'offline_access' (refresh_token 발급용, 자동 로그인 필수)"/>
+        </Border>
+    </Grid>
+</Window>