v0.7.0

Added

• Foreign port-holder awareness in up and down. A new ownership check
  maps a slot's port to its holding pid(s) and classifies them against ataegina's
  own start-time-verified launch record (ours / foreign / unknown). up no
  longer claims a slot it never launched is "already up"/"ready" — it names the
  foreign holder and declines to launch on top of it. down leaves a
  positively-foreign holder alone (previously it killed whatever held the port);
  down --force (or ATE_DOWN_FORCE=1) still clears the slot on demand.
  Ambiguous holders — unmappable pids, or a daemonize-style server of ours that
  reparented to init — stay unknown and behave exactly as before, so nothing we
  own is spared teardown or falsely accused.
• More stacks detected by init. Backends: Go now emits a runnable
  go run . default (with a PORT env) instead of a bare TODO; Rust
  (Cargo.toml → cargo run) and PHP/Laravel (artisan → artisan serve)
  added. Frontends: Nuxt, Astro, and SvelteKit added (matched before the
  bare-vite fallback they build on).
• Man page. Ship ataegina.1 (man ataegina); install.sh installs it
  best-effort alongside the script.
• Automated release + Git Bash CI. A release.yml workflow publishes the
  GitHub Release (and optionally bumps the Homebrew tap) on a version tag, and a
  Windows runner now exercises the Git Bash support the README claims.