[CherryPick] Fix thinking bug cp #4736
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Motivation
由于模型效果问题,尽管是思考模型,也存在不思考仅回复的情况,推理引擎进行了兜底,在这种情况下,强制插入think end id,让模型认为自己是思考结束,接着进行回复输出。
Modifications
Usage or Command
无
Accuracy Tests
无
Checklist
[FDConfig],[APIServer],[Engine],[Scheduler],[PD Disaggregation],[Executor],[Graph Optimization],[Speculative Decoding],[RL],[Models],[Quantization],[Loader],[OP],[KVCache],[DataProcessor],[BugFix],[Docs],[CI],[Optimization],[Feature],[Benchmark],[Others],[XPU],[HPU],[GCU],[DCU],[Iluvatar],[Metax]]pre-commitbefore commit.releasebranch, make sure the PR has been submitted to thedevelopbranch, then cherry-pick it to thereleasebranch with the[Cherry-Pick]PR tag.