[Feature] two chunk overlap

[zhoutianzi666]

Motivation

上线分支支持TBO

💡 If this PR is a Cherry Pick, the PR title needs to follow the format by adding the [Cherry-Pick] label at the very beginning and appending the original PR ID at the end. For example, [Cherry-Pick][CI] Add check trigger and logic(#5191)

💡 如若此PR是Cherry Pick，PR标题需遵循格式，在最开始加上[Cherry-Pick]标签，以及最后面加上原PR ID，例如[Cherry-Pick][CI] Add check trigger and logic(#5191)

Modifications

Usage or Command

Accuracy Tests

Checklist

• Add at least a tag in the PR title.
  • Tag list: [[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]]
  • You can add new tags based on the PR content, but the semantics must be clear.
• Format your code, run pre-commit before commit.
• Add unit tests. Please write the reason in this PR if no unit tests.
• Provide accuracy results.
• If the current PR is submitting to the release branch, make sure the PR has been submitted to the develop branch, then cherry-pick it to the release branch with the [Cherry-Pick] PR tag.

[paddle-bot]

Thanks for your contribution!

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0.97087% with 102 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (release/online/20251131@9807f2b). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
fastdeploy/worker/tbo.py	0.00%	73 Missing ⚠️
...ecutor/layers/attention/flash_mask_attn_backend.py	0.00%	12 Missing ⚠️
..._executor/layers/moe/fused_moe_deepgemm_backend.py	0.00%	11 Missing ⚠️
fastdeploy/model_executor/layers/moe/ep.py	0.00%	6 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##             release/online/20251131    #5754   +/-   ##
==========================================================
  Coverage                           ?   58.53%           
==========================================================
  Files                              ?      320           
  Lines                              ?    39182           
  Branches                           ?     5911           
==========================================================
  Hits                               ?    22934           
  Misses                             ?    14413           
  Partials                           ?     1835           

Flag	Coverage Δ
GPU	58.53% <0.97%> (?)

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[lizhenyun01]

如若此PR是Cherry Pick，PR标题需遵循格式，在最开始加上[Cherry-Pick]标签，以及最后面加上原PR ID，例如[Cherry-Pick][CI] Add check trigger and logic(#5191) 这个改一下吧

[yuanlehome]

合入develop时务必改成config控制开启TBO

[zhoutianzi666]

如若此PR是Cherry Pick，PR标题需遵循格式，在最开始加上[Cherry-Pick]标签，以及最后面加上原PR ID，例如[Cherry-Pick][CI] Add check trigger and logic(#5191) 这个改一下吧

new feature，不算 cp

[lizhenyun01]

如若此PR是Cherry Pick，PR标题需遵循格式，在最开始加上[Cherry-Pick]标签，以及最后面加上原PR ID，例如[Cherry-Pick][CI] Add check trigger and logic(#5191) 这个改一下吧

new feature，不算 cp

好的 那记得尽快合入develop哈