Configure data sources (#259)

app/MindWork AI Studio/Settings/IInternalDataSource.cs

@@ -0,0 +1,9 @@
+namespace AIStudio.Settings;
+
+public interface IInternalDataSource : IDataSource
+{
+    /// <summary>
+    /// The unique identifier of the embedding method used by this internal data source.
+    /// </summary>
+    public string EmbeddingId { get; init; }
+}