- POST /api/auth/login: HMAC-SHA256 signed 7-day token, password from DASHBOARD_PASSWORD env
- GET /api/auth/verify: stateless token validation
- requireAuth middleware applied to all /api/* routes (except /api/health + /api/auth)
- /dashboard/login.html: dark TIP-themed login page with show/hide password toggle
- index.html: auth guard redirect to login + Authorization header on all api() calls
- No secrets in code — password stored in .env only