feat(cli): self-healing daemon lifecycle

every daemon-routed verb now probes the ipc socket via /v1/version
(instead of trusting existsSync), cleans up stale sock/pid files left
by a crashed daemon, and auto-spawns a detached `claudemesh daemon up`
under a file-lock when the daemon is down. polls for liveness up to a
budget (3s for ad-hoc verbs, 10s for launch) before falling through to
cold path.

includes a per-process result cache (script doing 50 sends pays spawn
cost at most once), a 30s recently-failed marker (no thundering-herd
retries on crash-loop), a spawn-lock (concurrent invocations share one
attempt), and a recursion guard env var (nested cli calls inside the
daemon process skip auto-spawn).

fixes the stale-socket bug where launch's ensureDaemonRunning returned
early on a left-over socket file from a crashed daemon, silently
breaking the spawned claude session's mcp shim.

deferred to 1.28.0: --strict / --no-daemon flags, lazy-loading of
cold-path code, per-session ipc tokens.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claudemesh-cli",
-  "version": "1.27.2",
+  "version": "1.27.3",
   "description": "Peer mesh for Claude Code sessions — CLI + MCP server.",
   "keywords": [
     "claude-code",