komnet v0.7.3

Nothing users call changes in this release. It is documentation and internal
structure, recorded here because an empty section would say less than the truth.

Changed

• The README now shows a real two-machine exchange — unedited CLI output from
  two isolated homes against a bare repository — including an agent being
  refused when it tries to close a needs: human item.
• The npm page led with --needs human on a plain factual question, which is
  the pattern komnet argues against everywhere else. It now routes as
  needs: agent, and the human gate is shown where it earns its place. The npm
  page also names the marketplace plugins and the registry entry for the first
  time.
• A direct-mode call that needs a daemon now says which daemon-only method it
  was and how to start one, instead of the generic "not available".

Internal

• Releases publish server.json to the official MCP Registry, so the entry no
  longer drifts behind npm the moment a version goes out.
• Network lost seven domains to network/ — claims, reviews, reading,
  sealing, authenticity, inbox and outbox — with its public API untouched.
  Three section headings turned out to group unrelated code: authenticity is
  read by messaging rather than by sealing, and the inbox and outbox share
  nothing but a comment.
• A method added to the daemon IPC contract without a direct-mode
  implementation is now a build error rather than a runtime one, which only
  ever surfaced for users running an editor with no daemon.

Full changelog: v0.7.2...v0.7.3