fix: alinear KPIs BPS al milímetro con Ads Manager y Clientify Online

Meta solo cuenta registration leads; Google guarda fracciones y redondea al sumar; ventas CRM usan pipeline Online con importe > 0.

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

sql/ad_daily_leads_numeric.sql

@@ -0,0 +1,5 @@
+-- Store fractional Google Ads conversions so period totals match Ads Manager
+-- (Math.round of the exact sum) for any date range.
+ALTER TABLE public.ad_daily
+  ALTER COLUMN platform_leads TYPE numeric(14, 6)
+  USING platform_leads::numeric(14, 6);