feat(ui): rework work console — single Session tab, right-aligned header, turns x/y

- Merge "Actions" + "Session" into one state-aware Session tab: review controls
  on top, then merge/worktree management, then child outcomes — each gated on the
  current state, with an empty-state hint when there's nothing to manage. This is
  the home the real merge/diff work (task 09eb5d52) will slot into.
- Move the model · turns · diff info block to the right of the title bar.
- Show turns as current/max using the resolved turn budget (task → list → global).
- Output terminal now fills the console body cleanly: clip the console to its
  rounded corners and inset the embedded terminal instead of clipping its bottom.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/ClaudeDo.Ui/ViewModels/Islands/DetailsIslandViewModel.cs

@@ -133,23 +133,42 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             EditableTitle, EditableDescription, Subtasks.Select(s => (s.Title, s.Done)));
 
     // ── Work console (redesign) ────────────────────────────────────────
+    // Two tabs: Output (live log) and Session (review + merge/worktree +
+    // outcomes, each section gated on the relevant state).
     [ObservableProperty]
     [NotifyPropertyChangedFor(nameof(IsOutputTab))]
-    [NotifyPropertyChangedFor(nameof(IsActionsTab))]
     [NotifyPropertyChangedFor(nameof(IsSessionTab))]
     private string _selectedTab = "output";
 
     public bool IsOutputTab  => SelectedTab == "output";
-    public bool IsActionsTab => SelectedTab == "actions";
     public bool IsSessionTab => SelectedTab == "session";
 
     [RelayCommand]
     private void SelectTab(string? tab) => SelectedTab = tab ?? "output";
 
-    public string TurnsText   => $"{Turns} turns";
+    // Merge/worktree controls only matter once there's a worktree to manage
+    // (standalone task), or a planning parent / improvement parent with children.
+    public bool ShowMergeSection =>
+        WorktreePath != null || Task?.IsPlanningParent == true || HasChildOutcomes;
+
+    // Nothing to manage yet (idle/queued/running standalone): show a hint.
+    public bool ShowSessionEmpty =>
+        !IsWaitingForReview && !ShowMergeSection && !HasChildOutcomes;
+
+    private void NotifySessionSections()
+    {
+        OnPropertyChanged(nameof(ShowMergeSection));
+        OnPropertyChanged(nameof(ShowSessionEmpty));
+    }
+
+    public string TurnsText   => $"{Turns}/{EffectiveMaxTurns}";
     public string DiffAddText => $"+{DiffAdditions}";
     public string DiffDelText => $"-{DiffDeletions}";
 
+    // Resolved turn budget: per-task override → list default → global default.
+    public int EffectiveMaxTurns =>
+        TaskMaxTurns is decimal t ? (int)t : (_listMaxTurns ?? _globalMaxTurns);
+
     public bool ShowRoadblock => IsFailed || IsCancelled;
     public string RoadblockMessage =>
         IsFailed ? "The session ended with an error." :
@@ -201,6 +220,7 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         OnPropertyChanged(nameof(IsAgentSectionEnabled));
         OnPropertyChanged(nameof(ShowRoadblock));
         OnPropertyChanged(nameof(RoadblockMessage));
+        NotifySessionSections();
     }
     [ObservableProperty] private string? _model;
 
@@ -223,7 +243,13 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     private string? _listAgentName;
 
     partial void OnTaskModelSelectionChanged(string? value) { RecomputeModelBadge(); QueueAgentSave(); }
-    partial void OnTaskMaxTurnsChanged(decimal? value) { RecomputeTurnsBadge(); QueueAgentSave(); }
+    partial void OnTaskMaxTurnsChanged(decimal? value)
+    {
+        RecomputeTurnsBadge();
+        OnPropertyChanged(nameof(EffectiveMaxTurns));
+        OnPropertyChanged(nameof(TurnsText));
+        QueueAgentSave();
+    }
 
     private void RecomputeModelBadge()
     {
@@ -460,6 +486,7 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         {
             RecomputeCanMergeAll();
             ReviewCombinedDiffCommand.NotifyCanExecuteChanged();
+            NotifySessionSections();
         };
 
         PrepLog.CollectionChanged += (_, _) => OnPropertyChanged(nameof(ShowPrepEmptyState));
@@ -637,6 +664,8 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             RecomputeModelBadge();
             RecomputeTurnsBadge();
             RecomputeAgentBadge();
+            OnPropertyChanged(nameof(EffectiveMaxTurns));
+            OnPropertyChanged(nameof(TurnsText));
         }
         finally
         {
@@ -1113,8 +1142,11 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     {
         OpenDiffCommand.NotifyCanExecuteChanged();
         OpenWorktreeCommand.NotifyCanExecuteChanged();
+        NotifySessionSections();
     }
 
+    partial void OnTaskChanged(TaskRowViewModel? value) => NotifySessionSections();
+
     [RelayCommand]
     private void CloseDetails() => CloseDetail?.Invoke();
 

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

@@ -26,8 +26,9 @@
     </Style>
   </UserControl.Styles>
 
-  <!-- Outer terminal card — Padding="0" so header/strip span edge-to-edge -->
-  <Border Classes="terminal" Padding="0">
+  <!-- Outer terminal card — Padding="0" so header/strip span edge-to-edge;
+       ClipToBounds keeps tab content inside the rounded corners (no bottom clip). -->
+  <Border Classes="terminal" Padding="0" ClipToBounds="True">
     <DockPanel LastChildFill="True">
 
       <!-- ── Title bar ── -->
@@ -42,9 +43,11 @@
           <Ellipse Classes="dot-green" />
         </StackPanel>
 
-        <!-- Info header: model · turns · +add -del -->
-        <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="6"
-                    HorizontalAlignment="Center" VerticalAlignment="Center">
+        <!-- Right cluster: info header (model · turns · diff) + status chip -->
+        <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="12"
+                    Margin="0,0,8,0" VerticalAlignment="Center">
+
+          <StackPanel Orientation="Horizontal" Spacing="6" VerticalAlignment="Center">
             <TextBlock Classes="meta" Text="{Binding Model}"
                        Foreground="{DynamicResource TextMuteBrush}" />
             <TextBlock Classes="meta" Text="·"
@@ -57,8 +60,7 @@
             <TextBlock Classes="diff-del" Text="{Binding DiffDelText}" />
           </StackPanel>
 
-        <!-- Status chips (LIVE / DONE / FAILED) -->
-        <Panel Grid.Column="2" Margin="0,0,8,0" VerticalAlignment="Center">
+          <Panel VerticalAlignment="Center">
             <Border Classes="live-chip pulsing"
                     IsVisible="{Binding IsRunning}">
               <StackPanel Orientation="Horizontal" Spacing="5" VerticalAlignment="Center">
@@ -84,6 +86,8 @@
             </Border>
           </Panel>
 
+        </StackPanel>
+
       </Grid>
 
       <!-- ── Roadblock band ── -->
@@ -124,11 +128,6 @@
                   Content="Output"
                   Command="{Binding SelectTabCommand}"
                   CommandParameter="output" />
-          <Button Classes="tab-btn"
-                  Classes.active="{Binding IsActionsTab}"
-                  Content="Actions"
-                  Command="{Binding SelectTabCommand}"
-                  CommandParameter="actions" />
           <Button Classes="tab-btn"
                   Classes.active="{Binding IsSessionTab}"
                   Content="Session"
@@ -140,18 +139,50 @@
       <!-- ── Tab body ── -->
       <Grid>
 
-        <!-- Output: embedded SessionTerminalView -->
+        <!-- Output: embedded terminal, inset so it reads as its own card -->
         <islands:SessionTerminalView
             IsVisible="{Binding IsOutputTab}"
+            Margin="10,8,10,10"
             Entries="{Binding Log}"
             Label="{Binding SessionLabel}"
             IsRunning="{Binding IsRunning}"
             IsDone="{Binding IsDone}"
             IsFailed="{Binding IsFailed}" />
 
-        <!-- Actions: merge-target + worktree controls -->
-        <ScrollViewer IsVisible="{Binding IsActionsTab}" Padding="14,10">
-          <StackPanel Spacing="10">
+        <!-- Session: review (top) + merge/worktree + outcomes — each gated on state -->
+        <ScrollViewer IsVisible="{Binding IsSessionTab}" Padding="14,10">
+          <StackPanel Spacing="14">
+
+            <!-- Review controls -->
+            <StackPanel Spacing="8" IsVisible="{Binding IsWaitingForReview}">
+              <TextBlock Classes="section-label" Text="REVIEW" />
+              <TextBlock Classes="field-label" Text="Feedback" />
+              <TextBox Text="{Binding ReviewFeedback, Mode=TwoWay}"
+                       AcceptsReturn="True"
+                       TextWrapping="Wrap"
+                       MinHeight="60"
+                       MaxHeight="180"
+                       PlaceholderText="Optional feedback for the next run…"
+                       Padding="8"
+                       Background="{DynamicResource Surface2Brush}"
+                       BorderBrush="{DynamicResource LineBrush}"
+                       BorderThickness="1"
+                       CornerRadius="8" />
+              <StackPanel Orientation="Horizontal" Spacing="8">
+                <Button Classes="btn accent" Content="Approve"
+                        Command="{Binding ApproveReviewCommand}" />
+                <Button Classes="btn" Content="Reject"
+                        Command="{Binding RejectReviewCommand}" />
+                <Button Classes="btn" Content="Park"
+                        Command="{Binding ParkReviewCommand}" />
+                <Button Classes="btn" Content="Cancel"
+                        Command="{Binding CancelReviewCommand}" />
+              </StackPanel>
+            </StackPanel>
+
+            <!-- Merge & worktree management -->
+            <StackPanel Spacing="10" IsVisible="{Binding ShowMergeSection}">
+              <TextBlock Classes="section-label" Text="MERGE &amp; WORKTREE" />
               <StackPanel Spacing="4">
                 <TextBlock Classes="field-label" Text="Merge target" />
                 <ComboBox ItemsSource="{Binding MergeTargetBranches}"
@@ -181,42 +212,10 @@
                          IsVisible="{Binding MergeAllError,
                              Converter={x:Static ObjectConverters.IsNotNull}}" />
             </StackPanel>
-        </ScrollViewer>
-
-        <!-- Session: review block + child outcomes -->
-        <ScrollViewer IsVisible="{Binding IsSessionTab}" Padding="14,10">
-          <StackPanel Spacing="10">
-
-            <!-- Review block -->
-            <StackPanel Spacing="8" IsVisible="{Binding IsWaitingForReview}">
-              <TextBlock Classes="section-label" Text="REVIEW" Margin="0,0,0,2" />
-              <TextBlock Classes="field-label" Text="Feedback" />
-              <TextBox Text="{Binding ReviewFeedback, Mode=TwoWay}"
-                       AcceptsReturn="True"
-                       TextWrapping="Wrap"
-                       MinHeight="60"
-                       MaxHeight="180"
-                       PlaceholderText="Optional feedback for the next run…"
-                       Padding="8"
-                       Background="{DynamicResource Surface2Brush}"
-                       BorderBrush="{DynamicResource LineBrush}"
-                       BorderThickness="1"
-                       CornerRadius="8" />
-              <StackPanel Orientation="Horizontal" Spacing="8">
-                <Button Classes="btn accent" Content="Approve"
-                        Command="{Binding ApproveReviewCommand}" />
-                <Button Classes="btn" Content="Reject"
-                        Command="{Binding RejectReviewCommand}" />
-                <Button Classes="btn" Content="Park"
-                        Command="{Binding ParkReviewCommand}" />
-                <Button Classes="btn" Content="Cancel"
-                        Command="{Binding CancelReviewCommand}" />
-              </StackPanel>
-            </StackPanel>
 
             <!-- Child outcomes -->
             <StackPanel Spacing="6" IsVisible="{Binding HasChildOutcomes}">
-              <TextBlock Classes="section-label" Text="OUTCOMES" Margin="0,0,0,2" />
+              <TextBlock Classes="section-label" Text="OUTCOMES" />
               <ItemsControl ItemsSource="{Binding ChildOutcomes}">
                 <ItemsControl.ItemTemplate>
                   <DataTemplate x:DataType="vm:ChildOutcomeRowViewModel">
@@ -236,6 +235,13 @@
               </ItemsControl>
             </StackPanel>
 
+            <!-- Empty state: nothing to manage yet -->
+            <TextBlock IsVisible="{Binding ShowSessionEmpty}"
+                       Classes="meta"
+                       Foreground="{DynamicResource TextMuteBrush}"
+                       TextWrapping="Wrap"
+                       Text="Nothing to manage yet — review and merge controls appear here once the run finishes." />
+
           </StackPanel>
         </ScrollViewer>
 

src/ClaudeDo.Ui/Views/Islands/SessionTerminalView.axaml

@@ -4,7 +4,7 @@
              xmlns:loc="using:ClaudeDo.Ui.Localization"
              x:Class="ClaudeDo.Ui.Views.Islands.SessionTerminalView"
              x:Name="Root">
-  <Border Classes="terminal" Margin="18,8,18,0">
+  <Border Classes="terminal" Margin="0">
     <DockPanel LastChildFill="True">
 
       <!-- ── Terminal header bar ── -->