* fix(billing): block demo/sandbox accounts from Stripe checkout
An anonymous demo user on a sandbox company reached POST /api/billing/checkout
and created a live Stripe customer. Neither the checkout nor the portal route
checked is_anonymous or is_sandbox, and withRouteContext lets anonymous users
through (they are authenticated, just anonymously).
Guard both routes on both conditions before any Stripe call: refuse anonymous
users (identity truth, cheap in-memory check) and sandbox companies (matches the
existing lib/sandbox/guard.ts "never charge a token" doctrine). Surface isDemo
on GET /api/billing/status so the client hides the upgrade CTA instead of
showing a button that 403s.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs(billing): redact tenant/customer IDs from incident note (CodeRabbit)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jakob Wennberg
c9d9c5fe99