- Document bootstrap admin login via KMTN_ADMIN_USERNAME/PASSWORD
env vars, including setup guide, curl examples, and config table
entries across docker-compose and bare-metal deployment sections
- Add KMTN_JWT_SECRET_KEY to all deployment config examples and
production checklist
- Fix docker-entrypoint.sh: remove unused API_UPSTREAM variable from
config.json envsubst (only API_PUBLIC_URL is needed)
- Fix app-config.service: default apiBaseUrl now reads from Angular
environment instead of empty string, and config.json path drops
leading ./ for cleaner resolution