Added local RAG (#756)

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

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

@@ -0,0 +1,36 @@
+namespace AIStudio.Tools.Databases.IndexStore;
+
+internal sealed class EmbeddingStateFileEntity
+{
+    public string ParentFileId { get; set; } = string.Empty;
+
+    public string DataSourceId { get; set; } = string.Empty;
+
+    public string AbsolutePath { get; set; } = string.Empty;
+
+    public string FileName { get; set; } = string.Empty;
+
+    public string RelativePath { get; set; } = string.Empty;
+
+    public string FileType { get; set; } = string.Empty;
+
+    public string Fingerprint { get; set; } = string.Empty;
+
+    public long FileSize { get; set; }
+
+    public DateTimeOffset CreationUtc { get; set; }
+
+    public DateTimeOffset LastWriteUtc { get; set; }
+
+    public DateTimeOffset EmbeddedAtUtc { get; set; }
+
+    public int ChunkCount { get; set; }
+
+    public string ConfidenceLevel { get; set; } = string.Empty;
+
+    public int ConfidenceLevelRank { get; set; }
+
+    public EmbeddingStateDataSourceEntity? DataSource { get; set; }
+
+    public List<EmbeddingStateChunkEntity> Chunks { get; set; } = [];
+}