Added a way to see the complete system prompt of a chat (#1001)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Chat/PreparedSystemPrompt.cs

@@ -1,3 +1,5 @@
+using AIStudio.Settings;
+
 namespace AIStudio.Chat;
 
 /// <summary>
@@ -7,13 +9,15 @@ namespace AIStudio.Chat;
 /// The system prompt is not the text a person typed into it. A chat template may replace it, the
 /// retrieved data of a data source is appended to it, a profile adds its own paragraph, the tool
 /// policy adds another, and the current date goes in front of everything. Whoever wants to know how
-/// long the next request is has to ask the same question the request does.
+/// long the next request is has to ask the same question the request does, and whoever shows the
+/// prompt reads its parts from here rather than repeating the decisions behind them.
 /// </remarks>
 /// <param name="Text">The whole system prompt, as the provider receives it.</param>
 /// <param name="BasePrompt">
 /// The prompt without any of the parts added around it. The thread keeps this one, so that it can
 /// still say which prompt it was configured with rather than the assembled result.
 /// </param>
-/// <param name="ProfileIsAllowed">Whether the chat template let a profile take part.</param>
 /// <param name="Explanation">What was used, in one sentence, for the log.</param>
-public sealed record PreparedSystemPrompt(string Text, string BasePrompt, bool ProfileIsAllowed, string Explanation);
+/// <param name="Parts">The parts the text is made of, in the order in which they stand in it.</param>
+/// <param name="SwitchedOffProfile">The profile the user selected but the chat template does not let take part, or Profile.NO_PROFILE when nothing was switched off.</param>
+public sealed record PreparedSystemPrompt(string Text, string BasePrompt, string Explanation, IReadOnlyList<SystemPromptPart> Parts, Profile SwitchedOffProfile);