No PostHog event carried realized revenue, and EFT/havale activations fired
nothing at all — so total paid revenue / MRR was unmeasurable (a Stripe DWH
connector alone would also miss EFT). activateSubscription is the shared
chokepoint for both Stripe (stripe.service) and EFT/manual (billing.service)
activation, so emit one canonical subscription_activated there with PostHog
revenue props: $revenue (major TRY), currency, mrr (yearly amortised /12),
plan, plan_id, brand_count, billing_period, method (looked up from the latest
payment row), referral_credit_days. Funnel steps keep their kuruş 'amount' but
intentionally carry no $revenue, so revenue isn't double-counted.
Unblocks trial->paid, MRR/ARPU and revenue-by-plan/channel across ALL payment
methods. Injected PostHogService (PostHogModule is @Global).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>