Refactored the RAG process (#287)

app/MindWork AI Studio/Tools/RAG/IDataSourceSelectionProcess.cs

@@ -0,0 +1,33 @@
+using AIStudio.Chat;
+using AIStudio.Provider;
+
+namespace AIStudio.Tools.RAG;
+
+public interface IDataSourceSelectionProcess
+{
+    /// <summary>
+    /// How is the RAG process called?
+    /// </summary>
+    public string TechnicalName { get; }
+
+    /// <summary>
+    /// How is the RAG process called in the UI?
+    /// </summary>
+    public string UIName { get; }
+
+    /// <summary>
+    /// How works the RAG process?
+    /// </summary>
+    public string Description { get; }
+    
+    /// <summary>
+    /// Starts the data source selection process.
+    /// </summary>
+    /// <param name="provider">The LLM provider. Used as default for data selection agents.</param>
+    /// <param name="lastPrompt">The last prompt that was issued by the user.</param>
+    /// <param name="chatThread">The chat thread.</param>
+    /// <param name="dataSources">The allowed data sources yielded by the data source service.</param>
+    /// <param name="token">The cancellation token.</param>
+    /// <returns></returns>
+    public Task<DataSelectionResult> SelectDataSourcesAsync(IProvider provider, IContent lastPrompt, ChatThread chatThread, AllowedSelectedDataSources dataSources, CancellationToken token = default);
+}