agent2: New thread from summary (#36578)

Release Notes:

- N/A

---------

Co-authored-by: Agus Zubiaga <agus@zed.dev>
Co-authored-by: Cole Miller <cole@zed.dev>

crates/zed/src/zed.rs

@@ -4362,6 +4362,7 @@ mod tests {
                     | "workspace::MoveItemToPaneInDirection"
                     | "workspace::OpenTerminal"
                     | "workspace::SendKeystrokes"
+                    | "agent::NewNativeAgentThreadFromSummary"
                     | "zed::OpenBrowser"
                     | "zed::OpenZedUrl" => {}
                     _ => {