Refactor: move tokenStorage into lib/api/

It only serves the API client — belongs with the HTTP layer.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/src/hooks/useAuth.ts

@@ -1,7 +1,7 @@
 import { create } from "zustand";
 import { authApi } from "@/lib/api/auth";
 import { UserOut } from "@/types/user";
-import { saveTokens, getRefreshToken, clearTokens, loadFromStorage } from "@/lib/tokenStorage";
+import { saveTokens, getRefreshToken, clearTokens, loadFromStorage } from "@/lib/api/tokenStorage";
 
 interface AuthState {
   user: UserOut | null;

web/src/lib/api/client.ts

@@ -1,5 +1,5 @@
 import axios from "axios";
-import { getAccessToken, getRefreshToken, saveTokens, clearTokens } from "@/lib/tokenStorage";
+import { getAccessToken, getRefreshToken, saveTokens, clearTokens } from "./tokenStorage";
 
 const BASE_URL = process.env.NEXT_PUBLIC_API_URL ?? "http://localhost:8000/api/v1";