feat(ui): move review feedback to the Output tab + review/worktree polish

- Feedback box + a new "Resume session" button move from the Git tab to the
  Output tab; the Git review block keeps Approve & Merge / Park / Cancel / Reset.
- Add a "Parked" chip for Idle tasks that still hold an Active worktree.
- Stop showing the "Session was Cancelled" band on cancel (failed-only now).
- Fix the Worktrees-overview state-chip contrast (dark text on the colour).

src/ClaudeDo.Ui/Views/Modals/WorktreesOverviewModalView.axaml

@@ -81,7 +81,7 @@
                      IsVisible="{Binding HasOutcome}"/>
           <Border Grid.Column="3" CornerRadius="3" Padding="6,2" VerticalAlignment="Center"
                   Background="{Binding State, Converter={StaticResource WorktreeStateColor}}">
-            <TextBlock Classes="meta" Text="{Binding State}" Foreground="{DynamicResource TextBrush}"
+            <TextBlock Classes="meta" Text="{Binding State}" Foreground="{DynamicResource DeepBrush}"
                        HorizontalAlignment="Center"/>
           </Border>
           <TextBlock Grid.Column="4" Classes="meta" Text="{Binding DiffStat}" VerticalAlignment="Center"/>