feat(users): fetch current user from backend

lib/api/users.ts

@@ -1,4 +1,6 @@
-import { currentUser, mockUsers } from "@/lib/mock"
+import { httpJson } from "@/lib/api/http"
+import { mockUsers } from "@/lib/mock"
+import type { User } from "@/lib/types"
 
 export function listUsers() {
   return mockUsers
@@ -8,6 +10,6 @@ export function getUserById(userId: string) {
   return mockUsers.find((user) => user.id === userId)
 }
 
-export function getCurrentUserForLogin() {
-  return currentUser
+export async function getCurrentUserForLogin(): Promise<User> {
+  return httpJson<User>("/api/v1/users/me")
 }