feat: add frontend production API client

apps/web/src/store/auth-store.ts

@@ -0,0 +1,12 @@
+import { create } from 'zustand';
+import type { AuthUser } from '@zeavis/shared';
+
+type AuthState = {
+  user: AuthUser | null;
+  setUser: (user: AuthUser | null) => void;
+};
+
+export const useAuthStore = create<AuthState>((set) => ({
+  user: null,
+  setUser: (user) => set({ user }),
+}));