feat(broker+cli): multi-tenant telegram bridge with 4 entry points

- DB: mesh.telegram_bridge table + migration
- Broker: telegram-bridge.ts (Grammy bot + WS pool + routing)
- Broker: telegram-token.ts (JWT connect tokens)
- Broker: POST /tg/token endpoint + bridge boot on startup
- CLI: claudemesh connect/disconnect telegram commands
- Spec: docs/telegram-bridge-spec.md

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

apps/cli/src/commands/connect-telegram.ts

@@ -0,0 +1,65 @@
+import { loadConfig } from "../state/config";
+
+export async function connectTelegram(args: string[]): Promise<void> {
+  const config = loadConfig();
+  if (config.meshes.length === 0) {
+    console.error("No meshes joined. Run 'claudemesh join' first.");
+    process.exit(1);
+  }
+
+  const mesh = config.meshes[0]!;
+  const linkOnly = args.includes("--link");
+
+  // Convert WS broker URL to HTTP
+  const brokerHttp = mesh.brokerUrl
+    .replace("wss://", "https://")
+    .replace("ws://", "http://")
+    .replace("/ws", "");
+
+  console.log("Requesting Telegram connect token...");
+
+  const res = await fetch(`${brokerHttp}/tg/token`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      meshId: mesh.meshId,
+      memberId: mesh.memberId,
+      pubkey: mesh.pubkey,
+      secretKey: mesh.secretKey,
+    }),
+    signal: AbortSignal.timeout(10_000),
+  });
+
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({}));
+    console.error(`Failed: ${(err as any).error ?? res.statusText}`);
+    process.exit(1);
+  }
+
+  const { token, deepLink } = (await res.json()) as {
+    token: string;
+    deepLink: string;
+  };
+
+  if (linkOnly) {
+    console.log(deepLink);
+    return;
+  }
+
+  // Print QR code using simple block characters
+  console.log("\n  Connect Telegram to your mesh:\n");
+  console.log(`  ${deepLink}\n`);
+  console.log("  Open this link on your phone, or scan the QR code");
+  console.log("  with your Telegram camera.\n");
+
+  // Try to generate QR with qrcode-terminal if available
+  try {
+    const QRCode = require("qrcode-terminal");
+    QRCode.generate(deepLink, { small: true }, (code: string) => {
+      console.log(code);
+    });
+  } catch {
+    // qrcode-terminal not available, link is enough
+    console.log("  (Install qrcode-terminal for QR code display)");
+  }
+}

apps/cli/src/commands/disconnect-telegram.ts

@@ -0,0 +1,3 @@
+export async function disconnectTelegram(): Promise<void> {
+  console.log("To disconnect Telegram, send /disconnect in the bot chat.");
+}