feat: sync Meta metrics, objetivos ppto/consecución y simulador por tenant

Rellena ad_daily desde Meta, KPIs con fallback a daily, objetivos de presupuesto vs consecución, y simulador sin TikTok anclado a métricas del cliente.

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

src/app/api/admin/ads/sync/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { createClient } from '@/lib/supabase/server';
+import { isAgencyRole, userRole } from '@/lib/agency';
+import { syncAdsForTenants } from '@/lib/ads-sync';
+
+export const dynamic = 'force-dynamic';
+export const maxDuration = 300;
+
+/** POST { tenantId?, days? } — sync Meta/Google insights → ad_daily + kpi_weekly */
+export async function POST(req: NextRequest) {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+  if (!user || !isAgencyRole(userRole(user))) {
+    return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
+  }
+
+  const body = await req.json().catch(() => ({}));
+  const tenantId =
+    typeof body.tenantId === 'string' ? body.tenantId : undefined;
+  const days =
+    typeof body.days === 'number' && body.days > 0 && body.days <= 90
+      ? body.days
+      : 30;
+
+  try {
+    const { results, days: d } = await syncAdsForTenants({ tenantId, days });
+    const ok = results.filter((r) => r.metaRows + r.googleRows > 0).length;
+    const errs = results.filter((r) => r.errors.length).length;
+    return NextResponse.json({
+      ok: true,
+      days: d,
+      synced: ok,
+      withErrors: errs,
+      results,
+    });
+  } catch (e) {
+    return NextResponse.json(
+      { error: e instanceof Error ? e.message : 'sync error' },
+      { status: 500 }
+    );
+  }
+}