v0.2.4

• Stamp v1 daemon endpoint URLs at register/heartbeat (routing metadata only)
• Direct cross-daemon v1 transport: same-daemon → remote owning-daemon HTTP
  (POST /session/{id}/prompt_async, no auth) → spool fallback; ownership
  revalidated immediately before every live prompt, never double-delivers
• Heartbeat-age liveness gating (live/stale/dead); dead/stale targets fail
  fast instead of burning full timeouts; default views hide dead rows
• Honest fleet_ps pid/port hints and registry-heartbeat status fallback
• New read-only fleet_doctor tool (28th): exact next commands for
  peer/commander/recovery states
• New skills/fleet/SKILL.md commander/worker workflow, shipped in npm files