Consolidate sprint status into handoff docs, add Listmonk/Mattermost/Mailcow
and Vikunja SSO guides, Beszel alerts script, mattermost inventory, and
mark phases 0–1 complete with phase 2 backlog for edge Caddy and security.
Co-authored-by: Cursor <cursoragent@cursor.com>
Deploy Kuma/Beszel monitoring docs and scripts, UniFi API key in vault,
listmonk migration inventory, status.levkin.ca + stats on Caddy, and
handoff doc for next agent.
Co-authored-by: Cursor <cursoragent@cursor.com>