docs/SPINE_VALIDATION.md: a precise owner runbook + checklist that provisions
the shipped-but-inert spine (Resend, CRON_SECRET + both crontabs, per-space
Stripe test mode + Billing Portal, the Supabase change-email template) and
proves each path end to end (dues cycle, notifications, prefs/inbox, /me,
door). Grounded in the actual config and route fail-closed codes; linked from
the README docs table.
integration/permission-escalation.test.ts: lock the additive permission
model's core guard, previously untested -- only admin/board may write
space_role_permissions, so a plain member cannot grant themselves a
capability, and the WITH CHECK pins the space.
No app code or migration; suite 626 unit / 54 integration green.
Moheeb Zara