added retrieval with vector and bm25 search

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

@@ -0,0 +1,21 @@
+namespace AIStudio.Tools.Services;
+
+internal static class DataSourceEmbeddingNames
+{
+    public static string GetCollectionName(string dataSourceName, string dataSourceId)
+    {
+        var safeId = dataSourceId
+            .ToLowerInvariant()
+            .Replace("-", string.Empty, StringComparison.Ordinal);
+
+        var safeName = new string(dataSourceName
+            .ToLowerInvariant()
+            .Where(c => c is >= 'a' and <= 'z' or >= '0' and <= '9')
+            .Take(32)
+            .ToArray());
+
+        safeName = string.IsNullOrWhiteSpace(safeName) ? "datasource" : safeName;
+
+        return $"rag_{safeName}_{safeId}";
+    }
+}