feat(admin): implement promotions management and loyalty points configuration

packages/types/index.ts

@@ -93,6 +93,7 @@ export interface StoreSettings {
   bankName: string
   bankAccountName: string
   bankAccountNumber: string
+  pointsEarnRate: number
 }
 
 export interface OrderItem {
@@ -113,6 +114,20 @@ export interface Order {
   customerEmail: string
   customerPhone: string
   shippingAddress: string
+  
+  subtotal?: number
+  promoLevel1Name?: string | null
+  promoLevel1Disc?: number
+  promoLevel2Name?: string | null
+  promoLevel2Disc?: number
+  
+  couponCode?: string | null
+  discountAmount?: number
+  
+  pointsUsed?: number
+  pointsDiscount?: number
+  pointsEarned?: number
+
   totalAmount: number
   shippingFee: number
   status: string