feat: add initial implementation for fetching avatar data from API

- Created a new sync.ts file to handle API requests.
- Defined interfaces for AvatarApiResponse, Data, and Avatar.
- Implemented a main function to fetch avatar data from the specified endpoint.

util/sync.ts

@@ -0,0 +1,32 @@
+async function main() {
+  const data: AvatarApiResponse = await fetch("https://gi.yatta.moe/api/v2/en/avatar").then(e => e.json());
+  
+}
+
+main();
+
+export interface AvatarApiResponse {
+  response: number;
+  data: Data;
+}
+
+export interface Data {
+  props: { [key: string]: string };
+  types: { [key: string]: string };
+  items: { [key: string]: Avatar };
+}
+
+export interface Avatar {
+  id: number | string;
+  rank: number;
+  name: string;
+  element: string;
+  weaponType: string;
+  region: string;
+  specialProp: string;
+  bodyType: string;
+  icon: string;
+  birthday: number[];
+  release: number;
+  route: string;
+}