feat(ui): Throttle-Stufen im Ausfuehrung-Tab sichtbar machen

Die vier UsageThrottle-Prozente waren nur per Gauge-Drag im Usage-Monitor
erreichbar und wurden im Settings-Modal unsichtbar durchgeschleift. Jetzt
read-only angezeigt plus Button in den Usage-Monitor. Der Button schliesst die
Settings absichtlich: Save() schreibt die beim Oeffnen gelesenen Throttle-Werte
zurueck und wuerde ein zwischenzeitliches Draggen ueberschreiben.

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

@@ -252,6 +252,18 @@
                 <TextBlock Text="{loc:Tr settings.general.autoContinueOnUsageLimitHint}"
                            Opacity="0.6" FontSize="12" TextWrapping="Wrap"/>
               </StackPanel>
+
+              <!-- Throttle stages live on the usage-monitor gauges (drag + spinner per stage);
+                   echoed read-only here so they aren't invisible on the tab that owns the gate. -->
+              <StackPanel Spacing="4">
+                <TextBlock Classes="field-label" Text="{loc:Tr settings.general.throttleStagesHeading}"/>
+                <TextBlock Text="{Binding ThrottleSummary}" Classes="meta"/>
+                <TextBlock Text="{loc:Tr settings.general.throttleStagesHint}"
+                           Opacity="0.6" FontSize="12" TextWrapping="Wrap"/>
+                <Button Classes="btn" HorizontalAlignment="Left"
+                        Content="{loc:Tr settings.general.openUsageMonitor}"
+                        Command="{Binding OpenUsageMonitorCommand}"/>
+              </StackPanel>
             </StackPanel>
           </ScrollViewer>
         </TabItem>
@@ -394,6 +406,22 @@
         <TabItem Header="{loc:Tr settings.sidebar.categoryFiles}">
           <ScrollViewer>
             <StackPanel Spacing="12" Margin="0,8,0,0">
+              <!-- claude_bin from worker.config.json — saved on its own button, not the modal's
+                   Save, because the worker owns that file rather than app_settings. -->
+              <StackPanel Spacing="6">
+                <TextBlock Classes="section-label" Text="{loc:Tr settings.files.cliSection}"/>
+                <TextBlock Classes="meta" Text="{loc:Tr settings.files.claudeBinHint}" TextWrapping="Wrap"/>
+                <Grid ColumnDefinitions="*,Auto" ColumnSpacing="8">
+                  <TextBox Grid.Column="0" Text="{Binding Files.ClaudeBin, Mode=TwoWay}"
+                           PlaceholderText="claude"/>
+                  <Button Grid.Column="1" Classes="btn" Content="{loc:Tr settings.save}"
+                          Command="{Binding Files.SaveClaudeBinCommand}"/>
+                </Grid>
+                <ctl:OperationIndicator Status="{Binding Files.ClaudeBinOp}"/>
+                <TextBlock Classes="path-mono" TextWrapping="Wrap"
+                           Text="{Binding Files.ClaudeBinResolvedHint}"
+                           IsVisible="{Binding Files.ClaudeBinResolvedHint, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
+              </StackPanel>
               <StackPanel Spacing="6">
                 <TextBlock Classes="section-label" Text="{loc:Tr settings.files.agentsSection}"/>
                 <TextBlock Classes="meta" Text="{loc:Tr settings.files.agentsHint}"