Update tests for current tool call and app-server event types (#35942)

## What changed

- Set `encrypted_function_args` when constructing the router test's local tool call.
- Box the TUI test's app-server request payload to match `AppServerEvent::ServerRequest`.

GitOrigin-RevId: 45195f362bc912d202d95ea67271bcb102bf1e2a

codex-rs/core/src/tools/router_tests.rs

@@ -165,6 +165,7 @@ async fn parallel_support_does_not_match_namespaced_local_tool_names() -> anyhow
             payload: ToolPayload::Function {
                 arguments: "{}".to_string(),
             },
+            encrypted_function_args: None,
         }),
         None
     );

codex-rs/tui/src/app/tests.rs

@@ -4411,12 +4411,12 @@ async fn background_side_cleanup_removes_local_state_and_ignores_late_events() -
 
     app.handle_app_server_event(
         &app_server,
-        codex_app_server_client::AppServerEvent::ServerRequest(exec_approval_request(
+        codex_app_server_client::AppServerEvent::ServerRequest(Box::new(exec_approval_request(
             side_thread_id,
             "turn-1",
             "item-1",
             Some("approval-1"),
-        )),
+        ))),
     )
     .await;
     let resolution = app