- Add rate limiting per endpoint (login: 5/min, API: 100/min) - Add input validation helpers (email, UUID, string, int) - Add tenant isolation to all handlers - Remove old validation.go, replace with input.go - Fix service/customer.go to use new validation functions - Build successful
- Add Infrastructure Health section with CPU/Memory/Disk panels - Add Service Status section with PM2/Docker panels - Create GrafanaPanel component for iframe embedding - Build passes successfully