recent changes

scripts/pi-work_orders_add_mold_cavities.sql

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+-- Run on the Pi/MariaDB instance used by Node-RED (local `work_orders` table).
+-- Required before importing updated flows that INSERT/UPDATE mold, cavities_total, cavities_active.
+
+ALTER TABLE work_orders ADD COLUMN mold VARCHAR(256) NULL;
+ALTER TABLE work_orders ADD COLUMN cavities_total INT NULL;
+ALTER TABLE work_orders ADD COLUMN cavities_active INT NULL;
+
+-- If columns already exist, skip this script or adjust manually.