feat(cli): stateful welcome screen + v0.1.4 bump

Running \`claudemesh\` with no args now detects install state and
prints context-appropriate guidance: suggests \`install\` if MCP
not registered, \`join\` if no meshes, \`launch\` if ready.
Replaces the static HELP dump with a first-run wizard that meets
users where they are.

Static HELP still available via --help.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claudemesh-cli",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "Claude Code MCP client for claudemesh — peer mesh messaging between Claude sessions.",
   "keywords": [
     "claude-code",