refactor: route channel runtime via plugin api

extensions/telegram/index.ts

@@ -1,12 +1,14 @@
 import type { ClawdbotPluginApi } from "clawdbot/plugin-sdk";
 
 import { telegramPlugin } from "./src/channel.js";
+import { setTelegramRuntime } from "./src/runtime.js";
 
 const plugin = {
   id: "telegram",
   name: "Telegram",
   description: "Telegram channel plugin",
   register(api: ClawdbotPluginApi) {
+    setTelegramRuntime(api.runtime);
     api.registerChannel({ plugin: telegramPlugin });
   },
 };