-- 137_proceeding_role_labels — DOWN -- -- Drops the 4 role-label columns. Backfilled data is lost on -- down-migration; that's acceptable because the frontend renderer -- falls back to the default labels ("Klägerseite" / "Beklagtenseite") -- when the columns are absent. ALTER TABLE paliad.proceeding_types DROP COLUMN IF EXISTS role_reactive_label_en; ALTER TABLE paliad.proceeding_types DROP COLUMN IF EXISTS role_reactive_label_de; ALTER TABLE paliad.proceeding_types DROP COLUMN IF EXISTS role_proactive_label_en; ALTER TABLE paliad.proceeding_types DROP COLUMN IF EXISTS role_proactive_label_de;