docs: update routing/messages/session config

docs/telegram.md

@@ -24,7 +24,7 @@ Status: ready for bot-mode use with grammY (long-polling by default; webhook sup
      - If you need a different public port/host, set `telegram.webhookUrl` to the externally reachable URL and use a reverse proxy to forward to `:8787`.
 4) Direct chats: user sends the first message; all subsequent turns land in the shared `main` session (default, no extra config).
 5) Groups: add the bot, disable privacy mode (or make it admin) so it can read messages; group threads stay on `group:<chatId>` and require mention/command to trigger replies.
-6) Optional allowlist: reuse `inbound.allowFrom` for direct chats by chat id (`123456789` or `telegram:123456789`).
+6) Optional allowlist: reuse `routing.allowFrom` for direct chats by chat id (`123456789` or `telegram:123456789`).
 
 ## Capabilities & limits (Bot API)
 - Sees only messages sent after it’s added to a chat; no pre-history access.