Archive old migrations (#426)

* Archive old migrations

* Fix invalid placement of migrations

migrations/archive/000.498.sql

@@ -0,0 +1,7 @@
+ALTER TABLE prices_other_products DROP COLUMN IF EXISTS wall_paint_kit_price;
+
+-- Add new column to prices_other_products for wall paint kit (with made up prices)
+ALTER TABLE prices_other_products ADD COLUMN wall_paint_kit_price NUMERIC;
+UPDATE prices_other_products SET wall_paint_kit_price = wallpaper_kit_price; -- Set paint kit price to the same as wallpaper kit price for now
+ALTER TABLE prices_other_products ALTER COLUMN wall_paint_kit_price SET NOT NULL;
+ALTER TABLE prices_other_products ADD CONSTRAINT valid_wall_paint_kit_price CHECK (prices_other_products.wall_paint_kit_price > 0);