- Bump version 26.1.1 → 26.3.1 (calver)
- Fix implicit global in auth/cryptosign.js: authextra = { → var authextra = {
  (ReferenceError in ESM strict mode / Vite 8 / Rolldown bundles)
- Forward use_es6_promises and use_deferred from create_connection config
  into the Connection options (previously dropped)
- Add justfile recipe: publish-autobahn (dry-run by default, confirm to publish)