Added retrieval integration, part I (#281)

app/MindWork AI Studio/Tools/RAG/RetrievalImageContext.cs

@@ -0,0 +1,38 @@
+using AIStudio.Chat;
+
+namespace AIStudio.Tools.RAG;
+
+public sealed class RetrievalImageContext : IRetrievalContext
+{
+    #region Implementation of IRetrievalContext
+
+    /// <inheritdoc />
+    public required string DataSourceName { get; init; }
+
+    /// <inheritdoc />
+    public required RetrievalContentCategory Category { get; init; }
+
+    /// <inheritdoc />
+    public required RetrievalContentType Type { get; init; }
+
+    /// <inheritdoc />
+    public required string Path { get; init; }
+
+    /// <inheritdoc />
+    public IReadOnlyList<string> Links { get; init; } = [];
+
+    #endregion
+
+    /// <summary>
+    /// The type of the image source.
+    /// </summary>
+    /// <remarks>
+    /// Is the image source a URL, a local file path, a base64 string, etc.?
+    /// </remarks>
+    public required ContentImageSource SourceType { get; init; }
+
+    /// <summary>
+    /// The image source.
+    /// </summary>
+    public required string Source { get; set; }
+}