- Worker: BILLING_PLANS JSON overrides the plan catalog (labels, display price,
hours, limits); entitlements return the plan list so the desktop shows no
hardcoded prices. STRIPE_AUTOMATIC_TAX=true adds automatic_tax and tax id
collection to Checkout (default off). Setup script takes prices from env.
- Desktop: register Plan & billing through the sidebar account menu
(merged nwparker/sidebar-account-menu) and drop the local adapter.
- Register the billing Worker's tests with the test-runner check.