Fizzy is now free. Remove the entire Stripe billing system,
subscription management, and card/storage limit enforcement.
Removes from saas/: Plan model, Account::Billing, Account::Subscription,
Account::Limited, Account::OverriddenLimits, Account::BillingWaiver,
all subscription/billing controllers and views, Stripe webhook handler,
card creation/publishing limit enforcement, admin account override UI,
usage report rake task, and all related tests.
Removes from main app: Fizzy.saas? guards for subscription panel,
SaaS card footer override, near-limit notices, and saas.css stylesheet.
Adds migration to drop billing tables from the SaaS database.
Non-billing SaaS features (push notifications, signup, authorization,
telemetry, console1984/audits1984) are preserved.
Jorge Manrubia