Fix: update price badge display after AI refinement

PriceSuggestedText was not being refreshed when Refine with AI ran,
so the badge still showed the original price even though PriceOverride
had been updated.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

EbayListingTool/Views/PhotoAnalysisView.xaml.cs

@@ -244,6 +244,7 @@ public partial class PhotoAnalysisView : UserControl
             TitleBox.Text             = newTitle;
             DescriptionBox.Text       = newDesc;
             PriceOverride.Value       = (double)newPrice;
+            PriceSuggestedText.Text   = newPrice > 0 ? $"£{newPrice:F2}" : "—";
 
             _lastResult.Title          = newTitle;
             _lastResult.Description    = newDesc;