feat(auth): add password reset flow with OTP

- Add password-reset Prisma schema for OTP tracking
- Add API contract schemas (start, verify, resend)
- Add password-reset service with OTP validation and email sending
- Add frontend reset-password page with 2-step flow
- Add InputOTP component usage for OTP input
- Add link to reset-password in login page
- Remove link to About in login
- Center and resize login/reset password forms

apps/frontend/src/features/login/login-page.tsx

@@ -49,8 +49,8 @@ export function LoginPage({ redirectTo = '/' }: LoginPageProps) {
   };
 
   return (
-    <main className="mx-auto flex min-h-screen w-full max-w-6xl items-center px-6">
-      <section className="w-full max-w-3xl rounded-xl border bg-card p-6 text-card-foreground shadow-sm">
+    <main className="flex min-h-screen w-full items-center justify-center px-6">
+      <section className="w-full max-w-sm rounded-xl border bg-card p-6 text-card-foreground shadow-sm">
         <h1 className="mb-2 text-2xl font-semibold">Iniciar sesión</h1>
         <p className="mb-4 text-sm text-muted-foreground">
           Ingresá con tu cuenta para acceder a Home.
@@ -89,9 +89,8 @@ export function LoginPage({ redirectTo = '/' }: LoginPageProps) {
         </form>
 
         <p className="mt-4 text-center text-sm text-muted-foreground">
-          ¿Solo querés explorar?{' '}
-          <Link to="/about" className="text-primary hover:underline">
-            Ir a About
+          <Link to="/reset-password" className="text-primary hover:underline">
+            ¿Olvidaste tu contraseña?
           </Link>
         </p>
       </section>