实现叫号播报并调整现场业务规则

需求描述：发布屏在员工叫号后播放语音；同场次手机号被叫号后可重新取号；登录连续失败限制调整为10次。

实现思路：发布屏按新批次去重触发中文语音；重复手机号仅拦截WAITING号码；登录限流使用10次阈值，并补充前后端回归测试与接口说明。

server/README.md

@@ -40,9 +40,11 @@ it never splits or skips a ticket and rejects when the first ticket alone is
 larger than the requested target. Each mode has a separate project-level
 anti-mistouch maximum.
 
-If a phone already has active tickets, ticket creation returns
+If a phone already has waiting tickets in the current queue session, ticket creation returns
 `DUPLICATE_PHONE`; repeat with the same request body except
 `allow_duplicate: true` and a new idempotency key after the employee confirms.
+Once the earlier ticket has been called, the same phone can take a new ticket
+without duplicate confirmation.
 
 `GET /api/public/projects` returns projects currently open for visitor
 self-service, including each project's allowed party-size range.