Add Customer users

migrations/000031_update_inventory_movements_for_ingredients.up.sql

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+-- Update inventory_movements table to support ingredients
+ALTER TABLE inventory_movements 
+ADD COLUMN item_id UUID,
+ADD COLUMN item_type VARCHAR(20);
+
+-- Copy existing product_id data to item_id
+UPDATE inventory_movements 
+SET item_id = product_id, 
+    item_type = 'PRODUCT' 
+WHERE product_id IS NOT NULL;
+
+-- Make item_id and item_type NOT NULL after data migration
+ALTER TABLE inventory_movements 
+ALTER COLUMN item_id SET NOT NULL,
+ALTER COLUMN item_type SET NOT NULL;
+
+-- Drop the old product_id column
+ALTER TABLE inventory_movements 
+DROP COLUMN product_id;
+
+-- Update quantity columns to support decimal
+ALTER TABLE inventory_movements 
+ALTER COLUMN quantity TYPE DECIMAL(12,3),
+ALTER COLUMN previous_quantity TYPE DECIMAL(12,3),
+ALTER COLUMN new_quantity TYPE DECIMAL(12,3);
+
+-- Update cost columns to support higher precision
+ALTER TABLE inventory_movements 
+ALTER COLUMN unit_cost TYPE DECIMAL(12,2),
+ALTER COLUMN total_cost TYPE DECIMAL(12,2);
+
+-- Add indexes for the new structure
+CREATE INDEX idx_inventory_movements_item_id ON inventory_movements(item_id);
+CREATE INDEX idx_inventory_movements_item_type ON inventory_movements(item_type);
+CREATE INDEX idx_inventory_movements_item_id_type ON inventory_movements(item_id, item_type);