Add ERI server assistant (#231)

app/MindWork AI Studio/Assistants/ERI/DataSourcesExtensions.cs

@@ -0,0 +1,19 @@
+namespace AIStudio.Assistants.ERI;
+
+public static class DataSourcesExtensions
+{
+    public static string Name(this DataSources dataSource) => dataSource switch
+    {
+        DataSources.NONE => "No data source selected",
+        DataSources.CUSTOM => "Custom description",
+        
+        DataSources.FILE_SYSTEM => "File system (local or network share)",
+        DataSources.OBJECT_STORAGE => "Object storage, like Amazon S3, MinIO, etc.",
+        DataSources.KEY_VALUE_STORE => "Key-Value store, like Redis, etc.",
+        DataSources.DOCUMENT_STORE => "Document store, like MongoDB, etc.",
+        DataSources.RELATIONAL_DATABASE => "Relational database, like MySQL, PostgreSQL, etc.",
+        DataSources.GRAPH_DATABASE => "Graph database, like Neo4j, ArangoDB, etc.",
+        
+        _ => "Unknown data source"
+    };
+}