fix(shop): render backend template defaults

app/(main)/shop/[id]/page.tsx

@@ -5,6 +5,7 @@ import { Button } from "@/components/ui/button"
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
 import { Separator } from "@/components/ui/separator"
 import { getShopById, listPlayersByShop, listReviews, listServices } from "@/lib/api"
+import { getShopSections } from "@/lib/domain/shop-template"
 import { Gamepad2, Megaphone, ShoppingBag, Star, Users } from "lucide-react"
 import Image from "next/image"
 import Link from "next/link"
@@ -26,9 +27,7 @@ export default async function ShopPage({ params }: PageProps) {
   const playerIds = shopPlayers.map((p) => p.id)
   const shopServices = allServices.filter((s) => playerIds.includes(s.playerId))
   const shopReviews = await listReviews()
-  const sortedSections = [...shop.templateConfig.sections]
-    .filter((s) => s.enabled)
-    .sort((a, b) => a.order - b.order)
+  const sortedSections = getShopSections(shop).filter((s) => s.enabled)
 
   return (
     <div className="container mx-auto py-6 space-y-8">
@@ -84,7 +83,7 @@ export default async function ShopPage({ params }: PageProps) {
                     <div className="flex items-center gap-4">
                       <Avatar className="w-16 h-16">
                         <AvatarImage src={shop.owner.avatar} />
-                        <AvatarFallback>{shop.owner.nickname[0]}</AvatarFallback>
+                        <AvatarFallback>{shop.owner.nickname[0] ?? "店"}</AvatarFallback>
                       </Avatar>
                       <div>
                         <p className="font-medium">店长：{shop.owner.nickname}</p>