feat(daemon+mcp): daemon required for in-Claude-Code use; thin MCP shim

The architectural convergence v0.9.0 was building toward. CLI keeps
working without a daemon (claudemesh send/peer/inbox/...), but the MCP
push-pipe — which Claude Code uses for mid-turn channel emits, slash
commands, and resources — now requires the daemon. There is no fallback.

Daemon (additive):
- /v1/skills (list) and /v1/skills/:name (get) IPC endpoints, so the
  MCP shim can surface mesh skills without holding its own broker WS.
- listSkills() / getSkill() on DaemonBrokerClient.
- SSE 'message' event now carries plaintext body, sender_member_pubkey,
  priority, and subtype — full payload the MCP shim needs to render a
  channel notification.

MCP server: 979 → 469 LoC (470 of the remaining 469 is the unrelated
mesh-service proxy mode; the push-pipe path is ~200 LoC including
boilerplate).
- Probes ~/.claudemesh/daemon/daemon.sock at boot. Bails loudly with
  actionable instructions if missing.
- Subscribes to /v1/events SSE and translates each event into a
  notifications/claude/channel emit.
- Fetches mesh skills from the daemon for ListPrompts/GetPrompt and
  ListResources/ReadResource. ListTools returns []; the CLI is the API.
- No broker WS, no decryption, no reconnect logic. Daemon owns all of it.

claudemesh install: auto-installs and starts the daemon service for the
user's primary mesh (launchd / systemd-user). Pass --no-service to skip.

claudemesh launch: probes the daemon socket; if absent, spawns
'claudemesh daemon up --mesh <slug>' detached and waits up to 10s for
the socket. Surfaces a clear warning on timeout but doesn't block —
Claude Code's MCP shim will print the same error if the daemon really
isn't there.

Bundle: dist/entrypoints/mcp.js drops from 154KB → 104KB (gzipped 34KB
→ 19KB). Test: MCP boots cleanly via stdio, declares correct
capabilities, talks JSON-RPC; daemon /v1/skills returns the empty list
as expected on a mesh with no skills.

Released as 1.24.0 on npm.

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

apps/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claudemesh-cli",
-  "version": "1.23.0",
+  "version": "1.24.0",
   "description": "Peer mesh for Claude Code sessions — CLI + MCP server.",
   "keywords": [
     "claude-code",