Added file patterns and exclusions to folder data sources (#1057)

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

app/MindWork AI Studio/Tools/Services/DataSourceEmbeddingHealth.cs

@@ -0,0 +1,11 @@
+namespace AIStudio.Tools.Services;
+
+/// <summary>
+/// Whether a settled data source can be used as-is or needs the user's attention.
+/// </summary>
+public enum DataSourceEmbeddingHealth
+{
+    HEALTHY,
+    WARNING,
+    ERROR,
+}