refactor(extensions): dedupe channel config, onboarding, and monitors

extensions/feishu/src/monitor.test-mocks.ts

@@ -0,0 +1,12 @@
+import { vi } from "vitest";
+
+export const probeFeishuMock = vi.hoisted(() => vi.fn());
+
+vi.mock("./probe.js", () => ({
+  probeFeishu: probeFeishuMock,
+}));
+
+vi.mock("./client.js", () => ({
+  createFeishuWSClient: vi.fn(() => ({ start: vi.fn() })),
+  createEventDispatcher: vi.fn(() => ({ register: vi.fn() })),
+}));