feat: scheduled messages — schedule_reminder, send_later, list_scheduled, cancel_scheduled

- Broker: schedule/list_scheduled/cancel_scheduled WS message types + in-memory delivery
- Client: scheduleMessage(), listScheduled(), cancelScheduled() with resolver Map pattern
- MCP: schedule_reminder, send_later, list_scheduled, cancel_scheduled tools
- CLI: claudemesh remind <msg> --in 2h | --at 15:00 | list | cancel <id>
- Types: WSScheduleMessage, WSScheduledAckMessage, WSScheduledListMessage, WSCancelScheduledAckMessage

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/cli/src/commands/inbox.ts

@@ -0,0 +1,60 @@
+/**
+ * `claudemesh inbox` — read pending peer messages.
+ *
+ * Connects, waits briefly for push delivery, drains the buffer, prints.
+ * Works best when message-mode is "inbox" or "off" (messages held at broker).
+ */
+
+import { withMesh } from "./connect";
+import type { InboundPush } from "../ws/client";
+
+export interface InboxFlags {
+  mesh?: string;
+  json?: boolean;
+  wait?: number;
+}
+
+function formatMessage(msg: InboundPush, useColor: boolean): string {
+  const dim = (s: string) => (useColor ? `\x1b[2m${s}\x1b[22m` : s);
+  const bold = (s: string) => (useColor ? `\x1b[1m${s}\x1b[22m` : s);
+
+  const text = msg.plaintext ?? `[encrypted: ${msg.ciphertext.slice(0, 32)}…]`;
+  const from = msg.senderPubkey.slice(0, 8);
+  const time = new Date(msg.createdAt).toLocaleTimeString();
+  const kindTag = msg.kind === "direct" ? "→ direct" : msg.kind;
+
+  return `  ${bold(from)} ${dim(`[${kindTag}] ${time}`)}\n  ${text}`;
+}
+
+export async function runInbox(flags: InboxFlags): Promise<void> {
+  const useColor =
+    !process.env.NO_COLOR && process.env.TERM !== "dumb" && process.stdout.isTTY;
+  const dim = (s: string) => (useColor ? `\x1b[2m${s}\x1b[22m` : s);
+  const bold = (s: string) => (useColor ? `\x1b[1m${s}\x1b[22m` : s);
+
+  const waitMs = (flags.wait ?? 1) * 1000;
+
+  await withMesh({ meshSlug: flags.mesh ?? null }, async (client, mesh) => {
+    // Wait briefly for broker to push any held messages.
+    await new Promise<void>((resolve) => setTimeout(resolve, waitMs));
+
+    const messages = client.drainPushBuffer();
+
+    if (flags.json) {
+      console.log(JSON.stringify(messages, null, 2));
+      return;
+    }
+
+    if (messages.length === 0) {
+      console.log(dim(`No messages on mesh "${mesh.slug}".`));
+      return;
+    }
+
+    console.log(bold(`Inbox — ${mesh.slug}`) + dim(` (${messages.length} message${messages.length === 1 ? "" : "s"})`));
+    console.log("");
+    for (const msg of messages) {
+      console.log(formatMessage(msg, useColor));
+      console.log("");
+    }
+  });
+}