feat: improve consumer-facing flow and payload helper / 改善可直接使用流程與 Telegram payload helper

tests/telegram-outbound-payload.test.mjs

@@ -0,0 +1,11 @@
+import test from "node:test"
+import assert from "node:assert/strict"
+
+import { buildTelegramReplyEndPayload } from "../src/telegram/outbound-payload.ts"
+
+test("buildTelegramReplyEndPayload returns text plus default reply-end buttons", () => {
+  const payload = buildTelegramReplyEndPayload("hello")
+  assert.equal(payload.text, "hello")
+  assert.equal(payload.buttons[0][0].callback_data, "rec:continue")
+  assert.equal(payload.buttons[0][1].callback_data, "rec:stop")
+})