fix: login → SuperOAuth root page (redirectUrl), drop LoginPage interne

frontend/src/pages/LoginPage.tsx

@@ -1,40 +0,0 @@
-import { Link } from 'react-router-dom';
-
-const PROVIDERS = [
-  { id: 'discord',  label: 'Discord',  icon: '◈' },
-  { id: 'github',   label: 'GitHub',   icon: '◉' },
-  { id: 'google',   label: 'Google',   icon: '◎' },
-  { id: 'twitch',   label: 'Twitch',   icon: '◆' },
-] as const;
-
-export default function LoginPage() {
-  const callbackUrl = encodeURIComponent(`${window.location.origin}/callback`);
-  const base = import.meta.env.VITE_SUPEROAUTH_URL;
-
-  return (
-    <div className="flex flex-col items-center gap-8 pt-20">
-      <div className="flex flex-col items-center gap-2">
-        <span className="font-mono text-xs font-bold tracking-widest text-od-accent">OD</span>
-        <h1 className="text-xl font-semibold text-od-text">Connexion</h1>
-        <p className="text-sm text-od-muted">Choisis ton provider pour continuer</p>
-      </div>
-
-      <div className="flex w-full max-w-xs flex-col gap-3">
-        {PROVIDERS.map(({ id, label, icon }) => (
-          <a
-            key={id}
-            href={`${base}/api/v1/auth/oauth/${id}?redirectUrl=${callbackUrl}`}
-            className="flex items-center gap-3 rounded border border-od-border bg-od-surface px-4 py-3 text-sm text-od-text transition-colors hover:border-od-accent hover:text-od-accent"
-          >
-            <span className="font-mono text-od-muted">{icon}</span>
-            {label}
-          </a>
-        ))}
-      </div>
-
-      <Link to="/" className="font-mono text-xs text-od-muted hover:text-od-text transition-colors">
-        ← Retour
-      </Link>
-    </div>
-  );
-}