superstack 2.1.0

superstack now runs beyond Claude Code: two host adapters carry the
always-on layer to GitHub Copilot CLI and OpenAI Codex CLI, and on
Codex the full skill bench loads too.

• Host adapters: adapters/copilot-cli/ and adapters/codex-cli/
  each install with one script, and the README teaches both installs
  beside the Claude Code install. A per-host capability matrix
  (adapters/README.md) states exactly what runs on each host, and a
  cell says yes only after the behavior was observed in a live session
  there; the limits sit beside the yes cells, plainly: no compaction
  carrier on Copilot, skill routing unmeasured on Codex.
• A cross-harness neutrality check fails the build if skill prose
  names any host's internal events or tools, keeping the core portable
  by construction.
• Per-module muting: list module names in .superstack/muted and
  each listed module's session-start line goes quiet while sessions are
  asked not to route there; the status report shows the muted set. The
  method kernel, the campaign runner, and the resume ritual cannot be
  muted.
• The goal is checked, not just shown: when the recorded stopping
  point sits still across sessions while the commits keep moving, the
  session-start voice says the goal line may be stale ground truth.
• Evidence from outside tools: name a browser in a one-line provider
  row in .superstack/providers and superstack runs the tool itself,
  writing the receipt from what it observed; browser proving works end
  to end on Chrome headless. Fifteen adversarial audit rounds hardened
  the row grammar and the receipt writer before this shipped.
• Suites 25 to 30, the adapter suites and a commit-hygiene guard
  among them. Attack rows whose weapons Windows cannot forge (symlinks,
  read-only directory bits) now skip visibly there instead of failing
  falsely; the macOS and Linux runners keep every row.