refactor: 提取 buildNavUrl 工具函数，统一 room API 错误处理

- 将 MatchResult.tsx 和 profile/page.tsx 中重复的导航 URL 构建逻辑提取到 src/lib/navigation.ts
- 7 个 room API 路由从 return NextResponse.json({ error }, { status }) 统一改为 throw ApiError，由 apiHandler 统一捕获

src/components/MatchResult.tsx

@@ -35,6 +35,7 @@ import ShareCardModal from "@/components/ShareCardModal";
 import RestaurantImage from "@/components/RestaurantImage";
 import AuthModal from "@/components/AuthModal";
 import Button from "@/components/Button";
+import { buildNavUrl } from "@/lib/navigation";
 import { useToast } from "@/hooks/useToast";
 
 interface MatchResultProps {
@@ -52,14 +53,6 @@ interface MatchResultProps {
   scene?: SceneType;
 }
 
-function buildNavUrl(restaurant: Restaurant): string {
-  if (restaurant.location) {
-    const [lng, lat] = restaurant.location.split(",");
-    return `https://uri.amap.com/marker?position=${lng},${lat}&name=${encodeURIComponent(restaurant.name)}&callnative=1`;
-  }
-  return `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(restaurant.name)}`;
-}
-
 function NoMatchResult({
   onReset,
   resetting,