feat: check category eligibility for update discount in frontend and backend

shop/components/order-wizard.tsx

@@ -353,16 +353,14 @@ export function OrderWizard({
         })
         const totalItem = base + modulesSum
         if (prod.billing_interval === 'one_time') {
-          oneTime += totalItem
+          const allowDiscount = (cat as any).allow_update_discount !== false
+          const finalItemTotal = allowDiscount ? (totalItem * updatePriceModifier.multiplier) : totalItem
+          oneTime += finalItemTotal
         } else {
           monthly += totalItem
         }
       })
     }
-    // Apply update modifier to oneTime total
-    if (updatePriceModifier.multiplier !== 1) {
-      oneTime = oneTime * updatePriceModifier.multiplier
-    }
     return { monthlyTotal: monthly, oneTimeTotal: oneTime }
   }, [selections, products, categories, moduleQuantities, updatePriceModifier])
 

shop/lib/license-transform.ts

@@ -183,10 +183,14 @@ export function buildOrderSnapshot(
       multiplier = 0.90
     }
 
-    // Multiply only one_time item totals by multiplier
+    // Multiply only one_time item totals by multiplier if category allows it
     items.forEach(item => {
       if (item.billing_interval === 'one_time') {
-        item.item_total = item.item_total * multiplier
+        const cat = categories.find(c => c.id === item.category_id);
+        const allowDiscount = cat ? (cat as any).allow_update_discount !== false : true;
+        if (allowDiscount) {
+          item.item_total = item.item_total * multiplier;
+        }
       }
     })
     subtotal = items.reduce((acc, item) => acc + item.item_total, 0)

shop/supabase/migrations/20260710002000_add_allow_update_discount_to_categories.sql

@@ -0,0 +1,6 @@
+-- Migration: Add allow_update_discount to categories
+-- Purpose: Add a boolean flag to categories to control if their products are eligible for the update discount.
+
+ALTER TABLE public.categories ADD COLUMN IF NOT EXISTS allow_update_discount BOOLEAN DEFAULT true NOT NULL;
+
+NOTIFY pgrst, 'reload schema';