feat(ui): show cost columns and the TokenTracker hint card in the usage monitor

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

@@ -147,6 +147,41 @@
         <ctl:ThemedDatePicker SelectedDate="{Binding EndDate}"/>
       </StackPanel>
 
+      <!-- TokenTracker hint: shown instead of the analytics header while the CLI is missing -->
+      <Border DockPanel.Dock="Top" Margin="20,12,20,0"
+              IsVisible="{Binding TokenTrackerMissing}"
+              Background="{DynamicResource DeepBrush}"
+              BorderBrush="{DynamicResource StatusReviewBrush}"
+              BorderThickness="1" CornerRadius="6" Padding="12,10">
+        <StackPanel Spacing="6">
+          <TextBlock Classes="title" Text="{loc:Tr modals.usageMonitor.ttMissingTitle}"/>
+          <TextBlock Classes="meta" TextWrapping="Wrap"
+                     Text="{loc:Tr modals.usageMonitor.ttMissingBody}"/>
+          <TextBlock Classes="meta" TextWrapping="Wrap"
+                     IsVisible="{Binding !ShowInstallButton}"
+                     Text="{Binding NodeHintText}"/>
+          <TextBlock Classes="meta" TextWrapping="Wrap"
+                     IsVisible="{Binding HasTokenTrackerError}"
+                     Text="{Binding TokenTrackerErrorText}"/>
+          <Button Classes="btn" HorizontalAlignment="Left"
+                  IsVisible="{Binding ShowInstallButton}"
+                  Content="{loc:Tr modals.usageMonitor.ttInstall}"
+                  Command="{Binding InstallTokenTrackerCommand}"/>
+          <Ellipse Classes="spinner" Width="14" Height="14" HorizontalAlignment="Left"
+                   IsVisible="{Binding IsInstalling}"/>
+        </StackPanel>
+      </Border>
+
+      <!-- Analytics header: totals, freshness stamp, manual refresh -->
+      <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Spacing="12"
+                  Margin="20,12,20,0" VerticalAlignment="Center"
+                  IsVisible="{Binding !TokenTrackerMissing}">
+        <TextBlock Classes="title" VerticalAlignment="Center" Text="{Binding TotalsText}"/>
+        <TextBlock Classes="meta" VerticalAlignment="Center" Text="{Binding AnalyticsStampText}"/>
+        <Button Classes="btn" Content="{loc:Tr modals.usageMonitor.analyticsRefresh}"
+                Command="{Binding RefreshAnalyticsCommand}"/>
+      </StackPanel>
+
       <TabControl Padding="20,12" TabStripPlacement="Top">
 
         <TabItem Header="{loc:Tr modals.usageMonitor.modelUsage}">
@@ -155,7 +190,7 @@
               <TextBlock Classes="meta" Margin="0,16"
                          Text="{loc:Tr modals.usageMonitor.emptyStateHint}"
                          IsVisible="{Binding ModelsEmpty}"/>
-              <Grid ColumnDefinitions="*,80,80,80,80,80,80,60" Margin="12,0,12,4" IsVisible="{Binding !ModelsEmpty}">
+              <Grid ColumnDefinitions="*,80,80,80,80,80,80,60,80" Margin="12,0,12,4" IsVisible="{Binding !ModelsEmpty}">
                 <TextBlock Grid.Column="0" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnModel}"/>
                 <TextBlock Grid.Column="1" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnIn}"/>
                 <TextBlock Grid.Column="2" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnOut}"/>
@@ -164,12 +199,13 @@
                 <TextBlock Grid.Column="5" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnOtherOut}"/>
                 <TextBlock Grid.Column="6" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnOtherCache}"/>
                 <TextBlock Grid.Column="7" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnShare}"/>
+                <TextBlock Grid.Column="8" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnCost}"/>
               </Grid>
               <Border Height="1" Background="{DynamicResource LineBrush}" Margin="0,0,0,8" IsVisible="{Binding !ModelsEmpty}"/>
               <ItemsControl ItemsSource="{Binding ModelRows}">
                 <ItemsControl.ItemTemplate>
                   <DataTemplate x:DataType="vm:ModelUsageDisplayRow">
-                    <Grid ColumnDefinitions="*,80,80,80,80,80,80,60" Margin="12,4">
+                    <Grid ColumnDefinitions="*,80,80,80,80,80,80,60,80" Margin="12,4">
                       <TextBlock Grid.Column="0" Classes="title" Text="{Binding Model}"/>
                       <TextBlock Grid.Column="1" Classes="meta" Text="{Binding ClaudeDoInputTokens}"/>
                       <TextBlock Grid.Column="2" Classes="meta" Text="{Binding ClaudeDoOutputTokens}"/>
@@ -178,6 +214,7 @@
                       <TextBlock Grid.Column="5" Classes="meta" Text="{Binding OtherOutputTokens}"/>
                       <TextBlock Grid.Column="6" Classes="meta" Text="{Binding OtherCacheTokens}"/>
                       <TextBlock Grid.Column="7" Classes="meta" Text="{Binding SharePercent, StringFormat={}{0:0}%}"/>
+                      <TextBlock Grid.Column="8" Classes="meta" Text="{Binding CostText}"/>
                     </Grid>
                   </DataTemplate>
                 </ItemsControl.ItemTemplate>
@@ -192,7 +229,7 @@
               <TextBlock Classes="meta" Margin="0,16"
                          Text="{loc:Tr modals.usageMonitor.emptyStateHint}"
                          IsVisible="{Binding TasksEmpty}"/>
-              <Grid ColumnDefinitions="*,110,90,60,80,80,80" Margin="12,0,12,4" IsVisible="{Binding !TasksEmpty}">
+              <Grid ColumnDefinitions="*,110,90,60,80,80,80,80,70" Margin="12,0,12,4" IsVisible="{Binding !TasksEmpty}">
                 <TextBlock Grid.Column="0" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnTask}"/>
                 <TextBlock Grid.Column="1" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnList}"/>
                 <TextBlock Grid.Column="2" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnModelShort}"/>
@@ -200,12 +237,14 @@
                 <TextBlock Grid.Column="4" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnIn}"/>
                 <TextBlock Grid.Column="5" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnOut}"/>
                 <TextBlock Grid.Column="6" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnTotal}"/>
+                <TextBlock Grid.Column="7" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnCost}"/>
+                <TextBlock Grid.Column="8" Classes="eyebrow" Text="{loc:Tr modals.usageMonitor.columnRetries}"/>
               </Grid>
               <Border Height="1" Background="{DynamicResource LineBrush}" Margin="0,0,0,8" IsVisible="{Binding !TasksEmpty}"/>
               <ItemsControl ItemsSource="{Binding TaskRows}">
                 <ItemsControl.ItemTemplate>
                   <DataTemplate x:DataType="vm:TaskUsageDisplayRow">
-                    <Grid ColumnDefinitions="*,110,90,60,80,80,80" Margin="12,4">
+                    <Grid ColumnDefinitions="*,110,90,60,80,80,80,80,70" Margin="12,4">
                       <TextBlock Grid.Column="0" Classes="title" Text="{Binding TaskTitle}"/>
                       <TextBlock Grid.Column="1" Classes="meta" Text="{Binding ListName}"/>
                       <TextBlock Grid.Column="2" Classes="meta" Text="{Binding Model}"/>
@@ -213,6 +252,8 @@
                       <TextBlock Grid.Column="4" Classes="meta" Text="{Binding TokensIn}"/>
                       <TextBlock Grid.Column="5" Classes="meta" Text="{Binding TokensOut}"/>
                       <TextBlock Grid.Column="6" Classes="meta" Text="{Binding TotalTokens}"/>
+                      <TextBlock Grid.Column="7" Classes="meta" Text="{Binding CostText}"/>
+                      <TextBlock Grid.Column="8" Classes="meta" Text="{Binding RetriesText}"/>
                     </Grid>
                   </DataTemplate>
                 </ItemsControl.ItemTemplate>