- schema: stripe_subscription_id, plan_status, plan_expires_at on users
- lib/plans.ts: Free (2 GB · 7d · 1 dl) vs Pro (20 GB · 90d · 100 dl)
- http/billing.ts: POST /api/billing/{checkout,portal}
- http/webhook.ts: verified Stripe webhook → syncs plan lifecycle
- http/transfers.ts: enforces per-user plan limits instead of hardcoded caps
- http/me.ts: exposes plan + status + planExpiresAt to the client
Ops prerequisite: STRIPE_SECRET_KEY, STRIPE_WEBHOOK_SECRET,
STRIPE_PRICE_MONTHLY, STRIPE_PRICE_YEARLY env vars in anydrop-app-secrets.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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