fix(core): update FakeWebSocket to handle onopen assigned after open event fired#1006

NathanFlurry wants to merge 1 commit into06-25-chore_rename_workers_-_actorsrivet-dev/agent-os:06-25-chore_rename_workers_-_actorsfrom

06-25-fix_core_update_fakewebsocket_to_handle_onopen_assigned_after_open_event_firedrivet-dev/agent-os:06-25-fix_core_update_fakewebsocket_to_handle_onopen_assigned_after_open_event_firedCopy head branch name to clipboard