feat: Upgrade to Next.js 16.1 & React 19.2, migrate to Supabase SSR with async client handling

src/components/AuthForm.tsx

@@ -1,11 +1,11 @@
 'use client';
 
 import React, { useState } from 'react';
-import { createClientComponentClient } from '@supabase/auth-helpers-nextjs';
+import { createClient } from '@/lib/supabase/client';
 import { LogIn, UserPlus, Mail, Lock, Loader2, AlertCircle } from 'lucide-react';
 
 export default function AuthForm() {
-    const supabase = createClientComponentClient();
+    const supabase = createClient();
     const [isLogin, setIsLogin] = useState(true);
     const [email, setEmail] = useState('');
     const [password, setPassword] = useState('');