[BugFix] Fix several bugs in the request interruption and inference termination functionality

[qwes5s5]

Motivation

💡 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)

Current request interruption for inference termination has issues in both centralized and PD-disaggregated modes. These bugs can potentially cause resource leakage, service instability, and request hangs.

Modifications

• Construct and dispatch ScheduledAbortTask to workers to distinguish it from ScheduledPreemptTask.
• Implement differential handling based on the request's role and state within the ResourceManager to mitigate resource leaks.
• Optimize the overall performance of inference interruption in PD-separated mode, ensuring requests are interrupted and resources are reclaimed across P-nodes, D-nodes, and during transmission.

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 35.59322% with 114 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@c4abb01). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
fastdeploy/engine/common_engine.py	16.96%	90 Missing and 3 partials ⚠️
fastdeploy/splitwise/splitwise_connector.py	0.00%	9 Missing ⚠️
fastdeploy/scheduler/local_scheduler.py	40.00%	5 Missing and 1 partial ⚠️
fastdeploy/engine/sched/resource_manager_v1.py	85.71%	0 Missing and 3 partials ⚠️
fastdeploy/scheduler/dp_scheduler.py	80.00%	1 Missing and 1 partial ⚠️
fastdeploy/output/token_processor.py	90.90%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #6278   +/-   ##
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  Coverage           ?   67.57%           
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  Files              ?      391           
  Lines              ?    52867           
  Branches           ?     8244           
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  Hits               ?    35727           
  Misses             ?    14523           
  Partials           ?     2617           

Flag	Coverage Δ
GPU	67.57% <35.59%> (?)

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