agent2: Port Zed AI features (#36172)

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>

crates/agent_servers/src/acp/v1.rs

@@ -3,9 +3,9 @@ use anyhow::anyhow;
 use collections::HashMap;
 use futures::channel::oneshot;
 use project::Project;
-use std::cell::RefCell;
 use std::path::Path;
 use std::rc::Rc;
+use std::{any::Any, cell::RefCell};
 
 use anyhow::{Context as _, Result};
 use gpui::{App, AppContext as _, AsyncApp, Entity, Task, WeakEntity};
@@ -191,6 +191,10 @@ impl AgentConnection for AcpConnection {
             .spawn(async move { conn.cancel(params).await })
             .detach();
     }
+
+    fn into_any(self: Rc<Self>) -> Rc<dyn Any> {
+        self
+    }
 }
 
 struct ClientDelegate {