refactor: route channel runtime via plugin api

extensions/discord/index.ts

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