Add confidence levels (#140)

app/MindWork AI Studio/Tools/ConfidenceSchemesExtensions.cs

@@ -0,0 +1,16 @@
+namespace AIStudio.Tools;
+
+public static class ConfidenceSchemesExtensions
+{
+    public static string GetListDescription(this ConfidenceSchemes scheme) => scheme switch
+    {
+        ConfidenceSchemes.TRUST_USA_EUROPE => "Trust LLM providers from the USA and Europe",
+        ConfidenceSchemes.TRUST_USA => "Trust LLM providers from the USA",
+        ConfidenceSchemes.TRUST_EUROPE => "Trust LLM providers from Europe",
+        ConfidenceSchemes.LOCAL_TRUST_ONLY => "Trust only local LLM providers",
+        
+        ConfidenceSchemes.CUSTOM => "Configure your own confidence scheme",
+        
+        _ => "Unknown confidence scheme"
+    };
+}