superstack 0.9.0

• Honest enforcement language: the manifests no longer say
  "deterministic gates that enforce them". Firing is deterministic (hooks
  run on the harness event whether or not a skill loads); enforcement is
  heuristic, logged, and one-bounce overridable, and both manifests now
  carry that disclosure. The README's "what's guaranteed" line sharpened
  to "guaranteed to fire".
• Slimmer manifests: the plugin description drops the module roster
  and hardcoded counts for a short pain-first form; the marketplace entry
  keeps a fuller paragraph. No public surface lists a skill count that can
  go stale.
• Delegation mechanics in the campaign runner: delegated
  implementation gets a small brief (the step's grain, done-when, and
  named check; never the plan file or the session's history); every
  dispatch names its model tier; a step that rewrites many files runs in
  its own git worktree, and a worktree the session did not create is
  never deleted. Unattended work branches first unless the mandate names
  the default branch.