Added local RAG (#756)

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

app/MindWork AI Studio/Tools/Databases/IndexStore/EmbeddingStateChunkEntity.cs

@@ -0,0 +1,20 @@
+namespace AIStudio.Tools.Databases.IndexStore;
+
+internal sealed class EmbeddingStateChunkEntity
+{
+    public int Id { get; set; }
+
+    public string ChunkId { get; set; } = string.Empty;
+
+    public string ParentFileId { get; set; } = string.Empty;
+
+    public int? PageNumber { get; set; }
+
+    public int ChunkIndex { get; set; }
+
+    public string ChunkText { get; set; } = string.Empty;
+
+    public DateTimeOffset EmbeddedAtUtc { get; set; }
+
+    public EmbeddingStateFileEntity? File { get; set; }
+}