fix(mobile): update public menu URL format to https://menul.io/menu/:slug

apps/mobile/src/lib/api.ts

@@ -2,6 +2,15 @@ import { supabase } from "./supabase";
 
 const API_URL = process.env.EXPO_PUBLIC_API_URL ?? "http://localhost:3001";
 
+export class ApiError extends Error {
+  status: number;
+
+  constructor(status: number, message: string) {
+    super(message);
+    this.status = status;
+  }
+}
+
 async function authHeaders(): Promise<Record<string, string>> {
   const { data } = await supabase.auth.getSession();
   const token = data.session?.access_token;
@@ -17,7 +26,7 @@ async function request<T>(path: string, options: RequestInit = {}): Promise<T> {
 
   if (!res.ok) {
     const body = await res.json().catch(() => ({ message: res.statusText }));
-    throw new Error(body.message ?? `Request failed: ${res.status}`);
+    throw new ApiError(res.status, body.message ?? `Request failed: ${res.status}`);
   }
 
   if (res.status === 204) return undefined as T;