chore(monitoring): document health-check output

What changed:
- Documented the monitoring health-check script as a CLI/standalone output surface.
- Kept console output unchanged because it is the command's user interface.

Warning impact:
- @lysnrai/monitoring scoped warnings: 5 -> 0.
- Workspace warning total: 155 -> 150.

Verification:
- pnpm --filter @lysnrai/monitoring exec tsc --noEmit
- pnpm --filter @lysnrai/monitoring exec eslint . --ext .ts,.tsx
- pnpm lint

services/monitoring/health-check.ts

@@ -16,6 +16,8 @@
  *   USER_DASHBOARD_URL   (default: http://localhost:3002)
  */
 
+/* eslint-disable no-console -- This is a CLI/standalone health reporter; console output is its user interface. */
+
 import { DEFAULT_SERVICES, generateHealthReport } from '@bytelyst/monitoring';
 
 // ── CLI / HTTP server mode ──