add recoil store

frontend/src/lib/store.ts

@@ -0,0 +1,23 @@
+import axios from "axios";
+import { atom } from "recoil";
+import type { APIError, MeUser } from "./types";
+
+export const userState = atom<MeUser | null>({
+  key: "userState",
+  default: getCurrentUser(),
+});
+
+async function getCurrentUser(): Promise<MeUser | null> {
+  const token = localStorage.getItem("pronouns-token");
+  if (!token) return null;
+
+  try {
+    const resp = await axios.get<MeUser | APIError>("/api/v1/users/@me");
+    if ("id" in resp.data) return resp.data as MeUser;
+    return null;
+  } catch (e) {
+    console.log("Error fetching /users/@me:", e);
+  }
+
+  return null;
+}