fix color formatting core dump

hanatui/src/Tui/OperationForms.cs

@@ -38,22 +38,30 @@ public static class OperationForms
         if (error is not null)
             AnsiConsole.MarkupLine($"[yellow][[WARN]] Could not fetch schemas: {Markup.Escape(error)}[/]");
 
-        var choices = new List<string>(schemas);
-        choices.Add("[dim][ Enter manually ][/]");
-        choices.Add("[dim][ Cancel ][/]");
+        // Use sentinel strings as values so no markup leaks into choice labels
+        const string manualSentinel = "__MANUAL__";
+        const string cancelSentinel = "__CANCEL__";
+
+        var choiceValues = new List<string>(schemas) { manualSentinel, cancelSentinel };
 
         var prompt = new SelectionPrompt<string>()
-            .Title($"[bold]{title}[/]")
+            .Title($"[bold]{Markup.Escape(title)}[/]")
             .PageSize(15)
             .HighlightStyle(Style.Parse("bold dodgerblue1"))
-            .AddChoices(choices);
+            .UseConverter(v => v switch
+            {
+                manualSentinel => "[ Enter manually ]",
+                cancelSentinel => "[ Cancel ]",
+                _ => v,
+            })
+            .AddChoices(choiceValues);
 
         var selected = AnsiConsole.Prompt(prompt);
 
-        if (selected.Contains("Cancel"))
+        if (selected == cancelSentinel)
             return null;
 
-        if (selected.Contains("manually"))
+        if (selected == manualSentinel)
         {
             var manual = AnsiConsole.Ask<string>("Enter schema name:").Trim();
             return string.IsNullOrWhiteSpace(manual) ? null : manual;