feat!: move msteams to plugin

src/channels/registry.test.ts

@@ -9,7 +9,6 @@ import {
 describe("channel registry", () => {
   it("normalizes aliases", () => {
     expect(normalizeChatChannelId("imsg")).toBe("imessage");
-    expect(normalizeChatChannelId("teams")).toBe("msteams");
     expect(normalizeChatChannelId("web")).toBeNull();
   });
 
@@ -18,6 +17,11 @@ describe("channel registry", () => {
     expect(channels[0]?.id).toBe("telegram");
   });
 
+  it("does not include MS Teams by default", () => {
+    const channels = listChatChannels();
+    expect(channels.some((channel) => channel.id === "msteams")).toBe(false);
+  });
+
   it("formats selection lines with docs labels", () => {
     const channels = listChatChannels();
     const first = channels[0];