- Add detalle_json column to sync_wa_log via migration - guardar_sync_log() now stores doc, nombre, action, examenes count per patient - Historial table shows "Ver N" button that expands a row with patient list, action badge (Nuevo/Actualizado/Omitido) and exam count per patient Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>