feat(daemon): sprint 4 outbound routing + CLI thin-client + ambient mode

Daemon outbox now stores resolved target_spec + crypto_box ciphertext
+ nonce per row. Drain worker is a forwarder; no per-row resolution at
drain time. Outbound routing is no longer a placeholder.

Schema additions (additive, NULL allowed for legacy rows): outbox.mesh,
target_spec, nonce, ciphertext, priority. v0.9.0 rows keep draining via
the broadcast fallback so existing in-flight rows finish cleanly.

IPC /v1/send resolves the user-friendly to (display name, hex prefix,
full pubkey, @group, *, #topicId) into a broker-format target_spec at
accept time. DMs encrypt via crypto_box; broadcast/topic/group base64
the plaintext. Hex prefixes (16+ chars) match against connected peers.

CLI thin-client routing extends trySendViaDaemon pattern to peer list
and skill list/get. Three new helpers in services/bridge/daemon-route.ts.

SKILL.md gains ambient mode section: after claudemesh install, raw
claude works for the daemon's attached mesh. Launch stays as the
override path.

Spec at .artifacts/specs/2026-05-04-v2-roadmap-completion.md orders
the remaining v2.0.0 work: multi-mesh daemon (1.26), CLI-to-thin-client
(1.27), mesh-to-workspace rename (1.28), HKDF identity (2.0).

Released as 1.25.0 on npm.

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

apps/cli/src/daemon/run.ts

@@ -159,6 +159,10 @@ export async function runDaemon(opts: RunDaemonOptions = {}): Promise<number> {
     bus,
     broker,
     onPendingInserted: () => drain?.wake(),
+    // Sprint 4: IPC accept-send needs these to resolve targets and
+    // encrypt at accept time so the drain worker is just a forwarder.
+    meshSecretKey: mesh.secretKey,
+    meshSlug: mesh.slug,
   });
 
   try {