TASK 4 ship step 7: one-click go live + private-only enforcement (req 8) — the Go Live dialog is locked to Private (GoLiveViewModel.Visibility is a get-only string, no dropdown; settings' dead Default Visibility dropdown + Visibilities/DefaultStreamVisibility removed); YouTubeStreamService.CreateBroadcast always sends privacyStatus='private' and gained an injectable HttpClient? http = null seam; BeginGoLive fires CreateBroadcastAsync which stashes _currentBroadcastId for TASK 5's bind/transition (failure → StreamStatus.Error via AppLog, never a crash) alongside the frame pump, and StopStream clears it; the REC sign shows a dark-red PRIVATE badge next to REC whenever the live stream is private (IsLivePrivate) — the broadcast-insert integration test asserts the request body carries privacyStatus private (RecordingHandler seam) + a no-session guard test — 173 tests passing, 0 warnings

GoLiveWindow.xaml

@@ -99,9 +99,13 @@
                      VerticalScrollBarVisibility="Auto"/>
 
             <TextBlock Text="Visibility" Style="{StaticResource YtLabel}"/>
-            <ComboBox Style="{StaticResource YtComboBox}" Margin="0,0,0,12"
-                      ItemsSource="{Binding Visibilities}"
-                      SelectedItem="{Binding Visibility}"/>
+            <StackPanel Orientation="Horizontal" Margin="0,0,0,12">
+                <TextBlock Text="Private" Foreground="#e0e0e0" FontSize="14"
+                           VerticalAlignment="Center"/>
+                <TextBlock Text="Streams always start Private — change it on YouTube after going live."
+                           Foreground="#a0a0b0" FontSize="12" TextWrapping="Wrap"
+                           Margin="10,0,0,0" VerticalAlignment="Center"/>
+            </StackPanel>
         </StackPanel>
 
         <!-- ACTIONS -->