What's real: plans, subscriptions, the renewal schedule, dunning, loyalty tiers (from your users.membership & zukroSeeds) and all analytics are live CRUD/computation in Firestore. Renewal reminders queue to comms_queue. Auto-charging cards on a schedule (Razorpay/UPI AutoPay mandates) needs a Cloud Function with server-side keys + webhooks - the schedule here is ready to hand off to it.