💡 [REQUEST] PaCoRe-style parallel thinking during inference

### 起始日期 | Start Date

_No response_

### 实现PR | Implementation PR

_No response_

### 相关Issues | Reference Issues

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### 摘要 | Summary

https://github.com/stepfun-ai/PaCoRe

### 基本示例 | Basic Example

https://github.com/stepfun-ai/PaCoRe

### 缺陷 | Drawbacks

https://github.com/stepfun-ai/PaCoRe

### 未解决问题 | Unresolved questions

_No response_