feat: 后端初始化

supplied-service/prisma/schema.prisma

@@ -0,0 +1,96 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+}
+
+model User {
+  id        String   @id @default(cuid())
+  mobile    String   @unique
+  nickname  String?
+  avatarUrl String?
+  points    Int      @default(0)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  carts     CartItem[]
+  orders    Order[]
+}
+
+model Product {
+  id          String   @id @default(cuid())
+  name        String
+  description String?
+  detail      String?
+  price       Decimal  @db.Decimal(10, 2)
+  imageUrl    String?
+  category    String?
+  tag         String?
+  stock       Int      @default(0)
+  enabled     Boolean  @default(true)
+  createdAt   DateTime @default(now())
+  updatedAt   DateTime @updatedAt
+
+  carts       CartItem[]
+  orderItems  OrderItem[]
+}
+
+model CartItem {
+  id        String   @id @default(cuid())
+  userId    String
+  productId String
+  skuText   String?
+  quantity  Int      @default(1)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  product   Product  @relation(fields: [productId], references: [id], onDelete: Cascade)
+
+  @@unique([userId, productId, skuText])
+}
+
+model Order {
+  id          String      @id @default(cuid())
+  orderNo     String      @unique
+  userId      String
+  status      OrderStatus @default(PENDING_PAYMENT)
+  totalAmount Decimal     @db.Decimal(10, 2)
+  payType     PayType?
+  paidAt      DateTime?
+  createdAt   DateTime    @default(now())
+  updatedAt   DateTime    @updatedAt
+
+  user        User        @relation(fields: [userId], references: [id], onDelete: Cascade)
+  items       OrderItem[]
+}
+
+model OrderItem {
+  id        String  @id @default(cuid())
+  orderId   String
+  productId String
+  name      String
+  imageUrl  String?
+  skuText   String?
+  price     Decimal @db.Decimal(10, 2)
+  quantity  Int
+
+  order     Order   @relation(fields: [orderId], references: [id], onDelete: Cascade)
+  product   Product @relation(fields: [productId], references: [id])
+}
+
+enum OrderStatus {
+  PENDING_PAYMENT
+  PAID
+  SHIPPED
+  COMPLETED
+  CANCELLED
+}
+
+enum PayType {
+  POINTS
+  WECHAT
+  ALIPAY
+}