feat: page login avec gestion erreurs et rate limiting

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/providers/SessionProvider.tsx

@@ -0,0 +1,6 @@
+'use client'
+import { SessionProvider as NextAuthSessionProvider } from 'next-auth/react'
+
+export function SessionProvider({ children }: { children: React.ReactNode }) {
+  return <NextAuthSessionProvider>{children}</NextAuthSessionProvider>
+}