feat: interactive seguimiento timeline and channel evolution

Sync Superhuman Docs seguimiento/KPI pages into the portal (never passwords)
and show clients a dynamic timeline plus per-channel kpi_weekly charts.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/dashboard/seguimiento/page.tsx

@@ -0,0 +1,16 @@
+import React from 'react';
+import { createClient } from '@/lib/supabase/server';
+import { redirect } from 'next/navigation';
+import SeguimientoBoard from '@/components/SeguimientoBoard';
+
+export const dynamic = 'force-dynamic';
+
+export default async function SeguimientoPage() {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+  if (!user) redirect('/login');
+
+  return <SeguimientoBoard />;
+}