first build commit

src/app/(auth)/login/page.tsx

@@ -0,0 +1,75 @@
+'use client'
+
+import { useState } from 'react'
+import { signIn } from 'next-auth/react'
+import { useRouter } from 'next/navigation'
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Button } from '@/components/ui/button'
+
+export default function LoginPage() {
+  const router = useRouter()
+  const [error, setError] = useState('')
+  const [loading, setLoading] = useState(false)
+
+  async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
+    e.preventDefault()
+    setError('')
+    setLoading(true)
+
+    const form = new FormData(e.currentTarget)
+    const result = await signIn('credentials', {
+      email: form.get('email') as string,
+      password: form.get('password') as string,
+      redirect: false,
+    })
+
+    if (result?.error) {
+      setError('Invalid email or password')
+      setLoading(false)
+    } else {
+      router.push('/dashboard')
+    }
+  }
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-background p-4">
+      <Card className="w-full max-w-sm">
+        <CardHeader>
+          <CardTitle className="text-2xl">Sign in</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <form onSubmit={handleSubmit} className="space-y-4">
+            <div className="space-y-2">
+              <Label htmlFor="email">Email</Label>
+              <Input
+                id="email"
+                name="email"
+                type="email"
+                autoComplete="email"
+                required
+              />
+            </div>
+            <div className="space-y-2">
+              <Label htmlFor="password">Password</Label>
+              <Input
+                id="password"
+                name="password"
+                type="password"
+                autoComplete="current-password"
+                required
+              />
+            </div>
+            {error && (
+              <p className="text-sm text-destructive">{error}</p>
+            )}
+            <Button type="submit" className="w-full" disabled={loading}>
+              {loading ? 'Signing in…' : 'Sign in'}
+            </Button>
+          </form>
+        </CardContent>
+      </Card>
+    </div>
+  )
+}