enum MenuType {
  DIRECTORY
  MENU
  SUBMENU
  BUTTON
}

model Menu {
  id           Int       @id @default(autoincrement())
  parentId     Int?      @map("parent_id")
  title        String
  status       Boolean   @default(true)
  type         MenuType
  order        Int

  // existing
  frontendAuth String?   @unique @map("frontend_auth")

  // NEW (optional, all nullable)
  parent       Menu?      @relation("MenuToChildren", fields: [parentId], references: [id])
  children     Menu[]     @relation("MenuToChildren")
  path         String?   @map("path")           // route.path (full)
  name         String?   @map("name")           // route.name
  icon         String?   @map("icon")           // meta.icon
  redirect     String?   @map("redirect")
  component_key  String? @map("component_key")
  meta         Json?

  // action flags (0,1,2)
  canView      Int @default(0)
  canCreate    Int @default(0)
  canUpdate    Int @default(0)
  canDelete    Int @default(0)

  roleMenus      RoleMenu[]
  apiPermissions ApiPermission[]

  createTime   DateTime @default(now()) @map("create_time")
  updateTime   DateTime @default(now()) @updatedAt @map("update_time")

  @@map("sys_menu")
}