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/src/daemon/inbound.ts

@@ -44,11 +44,14 @@ export async function handleBrokerPush(msg: Record<string, unknown>, ctx: Inboun
   const brokerMessageId = stringOrNull(msg.messageId);
   const senderPubkey    = stringOrNull(msg.senderPubkey)    ?? "";
   const senderName      = stringOrNull(msg.senderName)      ?? senderPubkey.slice(0, 8);
+  const senderMemberPk  = stringOrNull(msg.senderMemberPubkey);
   const topic           = stringOrNull(msg.topic);
   const replyToId       = stringOrNull(msg.replyToId);
   const ciphertext      = stringOrNull(msg.ciphertext)      ?? "";
   const nonce           = stringOrNull(msg.nonce)           ?? "";
   const createdAt       = stringOrNull(msg.createdAt);
+  const priority        = stringOrNull(msg.priority) ?? "next";
+  const subtype         = stringOrNull(msg.subtype);
   // Forward-compat: Sprint 7 brokers will send client_message_id alongside.
   const clientMessageId = stringOrNull(msg.client_message_id) ?? brokerMessageId ?? randomUUID();
   const body            = await decryptOrFallback({
@@ -78,9 +81,12 @@ export async function handleBrokerPush(msg: Record<string, unknown>, ctx: Inboun
     client_message_id: clientMessageId,
     broker_message_id: brokerMessageId,
     sender_pubkey: senderPubkey,
+    sender_member_pubkey: senderMemberPk,
     sender_name: senderName,
     topic,
     reply_to_id: replyToId,
+    priority,
+    ...(subtype ? { subtype } : {}),
     body,
     created_at: createdAt,
   });