fix

migrations/000047_add_waste_percentage_to_product_recipes.down.sql

@@ -0,0 +1,2 @@
+-- Remove waste_percentage column from product_recipes table
+ALTER TABLE product_recipes DROP COLUMN waste_percentage;

migrations/000047_add_waste_percentage_to_product_recipes.up.sql

@@ -0,0 +1,5 @@
+-- Add waste_percentage column to product_recipes table
+ALTER TABLE product_recipes 
+ADD COLUMN waste_percentage DECIMAL(5,2) DEFAULT 0.00 CHECK (waste_percentage >= 0 AND waste_percentage <= 100);
+
+COMMENT ON COLUMN product_recipes.waste_percentage IS 'Waste percentage for this ingredient (0-100). Used to calculate gross quantity needed including waste.';