Closes#1: rename cloud:* subcommands to cloud-* (hyphen is the
conventional CLI separator; colon syntax is non-standard).
Closes#2: add update (git pull + rebuild) for both local and cloud
stacks, covering the common deploy-from-git workflow.
- compose.cloud.yml: pagepiper-cloud project on port 8533 (avoids
conflict with Linnet dev on 8521/Magpie on 8531)
- docker/web/nginx.cloud.conf: handles both /pagepiper/* path (primary
domain, no Caddy strip) and / path (menagerie, Caddy strips prefix)
- docker/web/Dockerfile: NGINX_CONF build arg to select dev vs cloud conf
- .env.cloud.example: cloud env template with BYOK gate vars
- manage.sh: cloud:start|stop|restart|status|logs|build commands
Caddy config updated separately (not in this repo).
DNS record needed: pagepiper.circuitforge.tech → Heimdall edge IP.
Adds pyproject.toml, environment.yml, Dockerfile, docker/web (Vue+nginx),
compose.yml, compose.override.yml.example, manage.sh, .env.example,
.gitignore, and config stubs for the pagepiper self-hosted PDF library tool.
Port 8521. No secrets committed.
