feat(frontend): Login + Register pages

packages/frontend/src/pages/auth/Login.tsx

@@ -0,0 +1,81 @@
+import { useState } from 'react';
+import { Link, useNavigate, useSearchParams } from 'react-router-dom';
+import { authApi } from '../../api/auth.js';
+import { ApiClientError } from '../../api/client.js';
+import { useAuth } from '../../stores/authStore.js';
+
+export function LoginPage() {
+  const [searchParams] = useSearchParams();
+  const next = searchParams.get('next') ?? '/';
+  const navigate = useNavigate();
+  const login = useAuth((s) => s.login);
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [needsVerification, setNeedsVerification] = useState(false);
+
+  async function submit(e: React.FormEvent) {
+    e.preventDefault();
+    setBusy(true); setError(null); setNeedsVerification(false);
+    try {
+      await login(email, password);
+      navigate(next, { replace: true });
+    } catch (err) {
+      if (err instanceof ApiClientError) {
+        if (err.code === 'EMAIL_NOT_VERIFIED') setNeedsVerification(true);
+        else setError(err.message);
+      } else setError('Onbekende fout');
+    } finally { setBusy(false); }
+  }
+
+  async function resend() {
+    try { await authApi.resendVerification({ email }); setError('Bevestigingsmail opnieuw verstuurd.'); }
+    catch { setError('Kon mail niet versturen.'); }
+  }
+
+  return (
+    <AuthLayout title="Inloggen">
+      <form onSubmit={submit} className="space-y-4">
+        <Field label="E-mailadres">
+          <input type="email" className="input-field" required value={email} onChange={(e) => setEmail(e.target.value)} autoComplete="email" />
+        </Field>
+        <Field label="Wachtwoord">
+          <input type="password" className="input-field" required value={password} onChange={(e) => setPassword(e.target.value)} autoComplete="current-password" />
+        </Field>
+        {error && <p className="rounded-xl bg-danger-50 p-3 text-sm text-danger-700 dark:bg-danger-400/10 dark:text-danger-400">{error}</p>}
+        {needsVerification && (
+          <div className="rounded-xl bg-amber-50 p-3 text-sm text-amber-800 dark:bg-amber-900/30 dark:text-amber-200">
+            Je e-mailadres is nog niet bevestigd.
+            <button type="button" className="ml-2 font-semibold underline" onClick={resend}>Stuur opnieuw</button>
+          </div>
+        )}
+        <button type="submit" className="btn-primary w-full py-3" disabled={busy}>{busy ? 'Bezig…' : 'Inloggen'}</button>
+      </form>
+      <div className="mt-6 flex justify-between text-sm">
+        <Link to="/forgot-password" className="text-brand-600 hover:underline">Wachtwoord vergeten?</Link>
+        <Link to="/register" className="text-brand-600 hover:underline">Account aanmaken</Link>
+      </div>
+    </AuthLayout>
+  );
+}
+
+export function AuthLayout({ title, children }: { title: string; children: React.ReactNode }) {
+  return (
+    <div className="mx-auto max-w-md p-6">
+      <div className="surface p-8">
+        <h1 className="mb-6 font-display text-2xl font-bold">{title}</h1>
+        {children}
+      </div>
+    </div>
+  );
+}
+
+export function Field({ label, children }: { label: string; children: React.ReactNode }) {
+  return (
+    <label className="block text-sm">
+      <span className="mb-1 block font-medium text-slate-700 dark:text-slate-200">{label}</span>
+      {children}
+    </label>
+  );
+}

packages/frontend/src/pages/auth/Register.tsx

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+import { useState } from 'react';
+import { Link } from 'react-router-dom';
+import { authApi } from '../../api/auth.js';
+import { ApiClientError } from '../../api/client.js';
+import { AuthLayout, Field } from './Login.js';
+
+export function RegisterPage() {
+  const [email, setEmail] = useState('');
+  const [displayName, setDisplayName] = useState('');
+  const [password, setPassword] = useState('');
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [done, setDone] = useState(false);
+
+  async function submit(e: React.FormEvent) {
+    e.preventDefault();
+    setBusy(true); setError(null);
+    try {
+      await authApi.register({ email, displayName, password });
+      setDone(true);
+    } catch (err) {
+      if (err instanceof ApiClientError) setError(err.message);
+      else setError('Onbekende fout');
+    } finally { setBusy(false); }
+  }
+
+  if (done) {
+    return (
+      <AuthLayout title="Bijna klaar 📬">
+        <p className="text-sm">
+          We hebben een bevestigingsmail gestuurd naar <strong>{email}</strong>.
+          Klik op de link om je account te activeren.
+        </p>
+        <Link to="/login" className="mt-6 block text-sm text-brand-600 hover:underline">Terug naar inloggen</Link>
+      </AuthLayout>
+    );
+  }
+
+  return (
+    <AuthLayout title="Registreren">
+      <form onSubmit={submit} className="space-y-4">
+        <Field label="Naam"><input className="input-field" required minLength={1} value={displayName} onChange={(e) => setDisplayName(e.target.value)} autoComplete="name" /></Field>
+        <Field label="E-mailadres"><input type="email" className="input-field" required value={email} onChange={(e) => setEmail(e.target.value)} autoComplete="email" /></Field>
+        <Field label="Wachtwoord (min. 8 tekens)"><input type="password" className="input-field" required minLength={8} value={password} onChange={(e) => setPassword(e.target.value)} autoComplete="new-password" /></Field>
+        {error && <p className="rounded-xl bg-danger-50 p-3 text-sm text-danger-700 dark:bg-danger-400/10 dark:text-danger-400">{error}</p>}
+        <button type="submit" className="btn-primary w-full py-3" disabled={busy}>{busy ? 'Bezig…' : 'Account aanmaken'}</button>
+        <p className="text-xs text-slate-500">De eerste registratie wordt automatisch beheerder.</p>
+      </form>
+      <div className="mt-6 text-sm">
+        <Link to="/login" className="text-brand-600 hover:underline">Heb je al een account? Inloggen</Link>
+      </div>
+    </AuthLayout>
+  );
+}