Fixed GPT-6 Sol and Luna, and the system prompt role of newer OpenAI models (#1010)

app/MindWork AI Studio/Provider/OpenAI/SystemPromptRoleExtensions.cs

@@ -0,0 +1,25 @@
+using AIStudio.Models;
+
+namespace AIStudio.Provider.OpenAI;
+
+public static class SystemPromptRoleExtensions
+{
+    /// <summary>
+    /// Spells a system prompt role the way OpenAI's APIs expect it.
+    /// </summary>
+    /// <remarks>
+    /// A role no rule states becomes "developer". OpenAI's current documentation names no other, a
+    /// model the rules do not know is almost always one released after they were written, and the
+    /// older generations which still want "system" say so in their families.
+    /// </remarks>
+    /// <param name="role">The role the model profile states.</param>
+    /// <returns>The role, as OpenAI names it.</returns>
+    public static string ToOpenAIRole(this SystemPromptRole role) => role switch
+    {
+        SystemPromptRole.SYSTEM => "system",
+        SystemPromptRole.DEVELOPER => "developer",
+        SystemPromptRole.USER => "user",
+
+        _ => "developer",
+    };
+}