Update product receipe

migrations/000038_create_product_recipes_table.up.sql

@@ -0,0 +1,24 @@
+-- Product recipes table
+CREATE TABLE product_recipes (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    organization_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
+    outlet_id UUID REFERENCES outlets(id) ON DELETE CASCADE,
+    product_id UUID NOT NULL REFERENCES products(id) ON DELETE CASCADE,
+    variant_id UUID REFERENCES product_variants(id) ON DELETE CASCADE,
+    ingredient_id UUID NOT NULL REFERENCES ingredients(id) ON DELETE CASCADE,
+    quantity DECIMAL(12,3) NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Indexes
+CREATE INDEX idx_product_recipes_organization_id ON product_recipes(organization_id);
+CREATE INDEX idx_product_recipes_outlet_id ON product_recipes(outlet_id);
+CREATE INDEX idx_product_recipes_product_id ON product_recipes(product_id);
+CREATE INDEX idx_product_recipes_variant_id ON product_recipes(variant_id);
+CREATE INDEX idx_product_recipes_ingredient_id ON product_recipes(ingredient_id);
+CREATE INDEX idx_product_recipes_created_at ON product_recipes(created_at);
+
+-- Unique constraint to prevent duplicate recipe combinations
+-- This allows multiple recipes for same product with different variants, or same product with no variant
+CREATE UNIQUE INDEX idx_product_recipes_unique ON product_recipes(product_id, COALESCE(variant_id, '00000000-0000-0000-0000-000000000000'::UUID), ingredient_id);