Compose improvements:
- forgejo: add healthcheck (/api/healthz), ROOT_URL + SSH_PORT env, LFS
- tailscale: drop redundant privileged (use cap_add only), use devices
for /dev/net/tun, mount /lib/modules, reliable healthcheck (tailscale
status), profiles for opt-in DERP, headscale comment in .env.example
- uptime-kuma: add built-in healthcheck (extra/healthcheck)
- filesuite: add healthchecks for both cloudreve and qbittorrent
- minecraft: add mc-health check (built into itzg image), simplify volumes
- teamspeak: add healthcheck via ServerQuery (nc localhost 10011)
- nextcloud: add healthchecks for all 3 services, depends_on with
service_healthy conditions so startup order is correct
CLI improvements:
- Fix docker compose detection (was broken with space in arg)
- Use global array for project discovery (no word-splitting bugs)
- Empty selection no longer defaults to "all" (safety)
- Show .env.example comments as hints during interactive configure
- Required fields (empty default) loop until user provides a value
- Disable colors when stdout is not a terminal
- compose() wrapper auto-adds --env-file
- Deduplicate project_exists / project_dir helpers
