fn sync_instance_session_id(store: &Arc<Store>, block_id: &str, sid: &str)Expand description
Write sid into the db_agent_instances row for block_id, if one
exists. Best-effort — no-ops (with a debug log, not a warn — most turns
on a block with no matching instance row are expected, e.g. terminal
panes never have one) when there’s nothing to update.