fix(pages): adapt all pages to backend-aligned types

Replace removed fields with available data sources throughout UI:
- order pages: use service.title instead of consumer/player names
- chat: look up sender from session.participants, remove readonly
- community: simplify post cards, keep pinned icon
- post detail: keep pinned/linkedOrderId display
- shop rules: use string commissionValue
- dashboard: parse string amounts for income display
- dispute/review: remove initiator/avatar references

app/(main)/search/page.tsx

@@ -218,7 +218,7 @@ function ShopCard({ item }: { item: ShopSearchItem }) {
           <div className="flex items-center gap-4 mb-3 text-sm">
             <div className="flex items-center gap-1 text-yellow-500 font-medium">
               <Star className="w-4 h-4 fill-current" />
-              {item.shop.rating.toFixed(1)}
+              {item.shop.rating}
             </div>
             <div className="text-muted-foreground">接单 {item.shop.totalOrders}</div>
           </div>