- Role enum (rt_operator, rt_lead, soc_analyst) aligned with spec §3 / F11.
Frontend predicates (isRT, isLead, isSOC) drive layout only — backend
remains the source of truth for permissions (D-008).
- SessionContext split into Provider (TSX) and hook (useSession) to satisfy
react-refresh/only-export-components.
- AppShell composes StatusRail (link health, active run, UTC clock, build) +
Sidebar (role-conditional nav with keyboard shortcut hints) + Outlet.
Unauthenticated visitors redirect to /login.
- StatusRail uses pulsing status-dot pattern and label-system micro-typo
(uppercase 10px, 0.08em tracking) to evoke an instrument-panel header.
- Router (createBrowserRouter): /login outside the shell, all app routes
nested inside the shell. RootLayout extracted to its own file for
fast-refresh compliance.
Routes (sprint 0, flat):
/login LoginPage
/engagements EngagementsPage
/library TtpLibraryPage (RT only — gated client-side, will
be re-enforced by backend RBAC)
/scenarios ScenarioComposerPage (RT only)
/runs LiveCockpitPage
/reports ReportPage
/audit AuditPage (lead RT only)
Sub-routes under /engagements/:eid land in sprint 1+ when real scoping
arrives.
Mimic frontend
React + TypeScript SPA for the Mimic BAS platform. Lives behind the existing RT reverse proxy (Caddy + TLS + IP allowlist) — see D-007.
Stack
- React 19, TypeScript strict
- Vite 8 (dev/build)
- Tailwind 4 (semantic tokens in
src/styles/theme.css) - TanStack Query 5 for server state
- react-router-dom v7 for routing
- Recharts for the report visualisations
- Vitest + Testing Library for unit tests
- Playwright for E2E (covered in sprint 1+)
Scripts
npm install
npm run dev # vite dev server on :5173
npm run build # tsc -b && vite build
npm run typecheck # tsc -b --noEmit
npm run lint # eslint . (strict TS + react-hooks + prettier)
npm run format # prettier --write .
npm test # vitest run
npm run e2e # playwright test (needs npm run e2e:install once)
Layout
src/
├── components/
│ ├── brand/ # Wordmark (provisional, awaits PR3 charter)
│ ├── shell/ # AppShell, Sidebar, StatusRail
│ └── ui/ # Panel, Pill, Button — instrument-grade primitives
├── mocks/ # sprint 0 fixtures (no backend yet)
├── router/ # RootLayout helper
├── screens/ # one folder per top-level route
├── session/ # mock auth context (D-003 v1 hook-in point)
├── styles/ # theme.css (tokens), fonts.css, globals.css
└── types/ # cross-cutting type aliases
Design system status (provisional)
The token layer in src/styles/theme.css is structured to receive the RT
graphic charter (PR3) without touching component code. Component CSS reads
exclusively from semantic tokens (--accent-rt, --status-detected, …);
swapping the underlying primitive palette is the only change required when
PR3 lands.
Auth status (sprint 0)
The session context reads/writes a mock user in sessionStorage. No real
auth yet. v1 will wire local username/password + bcrypt (D-003); v2 maps
Keycloak OIDC claims onto the same role enum.
Fonts
IBM Plex (Sans / Sans Condensed / Mono), self-hosted under public/fonts/.
Files are not yet vendored — see public/fonts/README.md. Until then the
UI falls back to ui-sans-serif / ui-monospace.