The "Activer + facture brouillon" button now appears ONLY when the ticket's
customer+location has En attente subscriptions (read-only /billing/activation-
preview) — defining which completed tickets trigger activation. The confirm
shows all services that would activate and the consolidated prorated total
(internet+tv+phone in one draft invoice). Preview writes nothing; commit gated
by PRORATION_WRITE.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
718698f0d0