Allow assistants to run in the background (#828)

app/MindWork AI Studio/Tools/AssistantSessions/IAssistantSessionSnapshotField.cs

@@ -0,0 +1,20 @@
+namespace AIStudio.Tools.AssistantSessions;
+
+/// <summary>
+/// Provides a typed value stored in an assistant session snapshot.
+/// </summary>
+public interface IAssistantSessionSnapshotField
+{
+    /// <summary>
+    /// Gets the type used when the value was captured.
+    /// </summary>
+    Type ValueType { get; }
+
+    /// <summary>
+    /// Tries to read the captured value as the requested type.
+    /// </summary>
+    /// <typeparam name="T">The requested value type.</typeparam>
+    /// <param name="value">The typed value when reading succeeds.</param>
+    /// <returns><c>true</c> when the captured value matches <typeparamref name="T"/>; otherwise, <c>false</c>.</returns>
+    bool TryRead<T>(out T? value);
+}