Fix leftover lookback constant so the Ads/Métricas build compiles.

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

src/app/dashboard/kpis/page.tsx

@@ -216,9 +216,7 @@ async function fetchOrganicDaily(
   tenantId: string | null,
   useServiceRole: boolean
 ): Promise<OrganicDailyRow[]> {
-  const since = new Date();
-  since.setUTCDate(since.getUTCDate() - AD_DAILY_LOOKBACK_DAYS);
-  const sinceStr = since.toISOString().slice(0, 10);
+  const sinceStr = adDailyLookbackSince();
 
   if (useServiceRole) {
     const headers = serviceHeaders();