-- Optional links on cached events.
--
-- Mirrors the `links` field on the quest.atmo.event record: a JSON array of
-- {label, url} objects, e.g. [{"label":"Schedule","url":"https://…"}].
-- An empty string means the event has no links. The canonical value lives in
-- the organizer's PDS record; this column is the local cache mirror.
ALTER TABLE events ADD COLUMN links TEXT NOT NULL DEFAULT '';