af2c8d6663
Three new platform screens on top of the Phase 1-4 work. Feature flags (/feature-flags) — platform-wide flag registry. New route + lib/arcadia/feature-flags.ts, capability platform.feature_flags, nav under Automation. List/create/edit/delete with a per-row default toggle; pairs with the Phase-4 per-tenant override tab. Impersonation — "Impersonate" action on active users. Entirely client-side token swap in session.ts (beginImpersonation parks the operator's session + API token and swaps to the impersonation token; endImpersonation restores it), with a sticky "Viewing as <email> — Stop" banner in the shell driven by the JWT's impersonated_by claim. Stop is client-side because the impersonation token carries the target's roles and can't reach the admin-gated /stop endpoint; impersonation is stateless JWT so restoring the parked token is sufficient. Billing (/billing) — replaced the coming-soon stub with the real plan catalogue from GET /billing/plans (lib/arcadia/billing.ts). Per-tenant plan assignment stays on the tenant detail page; Entitlements + Apps remain honestly marked "Soon". Verified in-browser with real backend; typecheck adds zero errors (36→36). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
layout/
App structure and page chrome.
Examples: AppShell, PageHeader, SidebarNav, Breadcrumbs, Footer.
Rules:
- Import from
~/components/ui/*— never the reverse. - Reference tokens only. No hardcoded colors or spacing.
- These compose
ui/sidebar,ui/navigation-menu, etc. into opinionated shells.