feat: prefix and anti multi-check

common/index.tsx

@@ -1,14 +1,17 @@
+const API_PREFIX = "/duty";
+
 export const get = async (url: string) => {
-  const resp = await fetch(url);
+  const resp = await fetch(`${API_PREFIX}${url}`);
   const json = await resp.json();
   return json;
 };
+
 export const post = async (
   url: string,
   json: any,
   headers: Record<string, string> = {}
 ) => {
-  const resp = await fetch(url, {
+  const resp = await fetch(`${API_PREFIX}${url}`, {
     method: "POST",
     headers: { "Content-Type": "application/json", ...headers },
     body: JSON.stringify(json),