refactor!: rename chat providers to channels

src/channels/plugins/index.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { CHANNEL_IDS } from "../registry.js";
+import { listChannelPlugins } from "./index.js";
+
+describe("channel plugin registry", () => {
+  it("stays in sync with channel ids", () => {
+    const pluginIds = listChannelPlugins()
+      .map((plugin) => plugin.id)
+      .slice()
+      .sort();
+    const channelIds = [...CHANNEL_IDS].slice().sort();
+    expect(pluginIds).toEqual(channelIds);
+  });
+});