refactor: migrate messaging plugins to sdk

src/auto-reply/reply.triggers.group-intro-prompts.test.ts

@@ -1,3 +1,4 @@
+import { mkdir } from "node:fs/promises";
 import { join } from "node:path";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { withTempHome as withTempHomeBase } from "../../test/helpers/temp-home.js";
@@ -63,6 +64,7 @@ vi.mock("../web/session.js", () => webMocks);
 async function withTempHome<T>(fn: (home: string) => Promise<T>): Promise<T> {
   return withTempHomeBase(
     async (home) => {
+      await mkdir(join(home, ".clawdbot", "agents", "main", "sessions"), { recursive: true });
       vi.mocked(runEmbeddedPiAgent).mockClear();
       vi.mocked(abortEmbeddedPiRun).mockClear();
       return await fn(home);