feat(ui): surface agent roadblocks and run outcome in the detail pane

- Parse CLAUDEDO_BLOCKED roadblocks out of the run result and show them in a
  colored card between Details and Output (ApplyOutcome / ShowRoadblockCard).
- Show the run outcome summary as an OUTCOME card in the Output tab, loaded from
  the task result (falls back to the run's ErrorMarkdown) and refreshed on finish.
- Guard the Session tab so it only appears when there are child outcomes.
- Make console resize per-task and proportional (description capped at 2/3,
  console floored at ~1/3) so a long description no longer spills over the footer.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/ClaudeDo.Ui/Views/Islands/Detail/DescriptionStepsCard.axaml

@@ -2,6 +2,7 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:ClaudeDo.Ui.ViewModels.Islands"
              xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
+             xmlns:loc="using:ClaudeDo.Ui.Localization"
              x:Class="ClaudeDo.Ui.Views.Islands.Detail.DescriptionStepsCard"
              x:DataType="vm:DetailsIslandViewModel">
 
@@ -21,7 +22,7 @@
           <Button Grid.Column="2"
                   Classes="icon-btn"
                   Margin="0,0,4,0"
-                  ToolTip.Tip="Copy formatted (title + description + open steps)"
+                  ToolTip.Tip="{loc:Tr details.copyFormattedTip}"
                   Click="OnCopyClick">
             <PathIcon Data="{StaticResource Icon.Copy}" Width="11" Height="11"/>
           </Button>
@@ -30,6 +31,7 @@
           <Button Grid.Column="3"
                   Classes="btn"
                   Padding="8,3"
+                  ToolTip.Tip="{loc:Tr details.toggleEditPreviewTip}"
                   Command="{Binding ToggleEditDescriptionCommand}">
             <Panel>
               <TextBlock Text="Preview" IsVisible="{Binding IsEditingDescription}"/>
@@ -40,7 +42,8 @@
         </Grid>
       </Border>
 
-      <!-- Body -->
+      <!-- Body (scrolls inside the card so the card fills its row to the divider) -->
+      <ScrollViewer VerticalScrollBarVisibility="Auto">
       <StackPanel Margin="14" Spacing="10">
 
         <!-- Description (always visible) -->
@@ -159,6 +162,7 @@
         </Border>
 
       </StackPanel>
+      </ScrollViewer>
     </DockPanel>
   </Border>