feat: add APIs to support plugin state in request

[SuZhou-Joe]

Description

Issues Resolved

Screenshot

Testing the changes

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 67.04%. Comparing base (a2cead4) to head (46e787d).

Files	Patch %	Lines
src/core/server/utils/workspace.ts	77.77%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@                   Coverage Diff                   @@
##           workspace-pr-integr     #312      +/-   ##
=======================================================
+ Coverage                66.94%   67.04%   +0.09%     
=======================================================
  Files                     3345     3346       +1     
  Lines                    65020    65029       +9     
  Branches                 10499    10501       +2     
=======================================================
+ Hits                     43530    43600      +70     
+ Misses                   18941    18849      -92     
- Partials                  2549     2580      +31     

Flag	Coverage Δ
Linux_	66.38% <77.77%> (-0.01%)	⬇️
_1	32.61% <22.22%> (-0.01%)	⬇️
_2	55.35% <77.77%> (+<0.01%)	⬆️
_3	43.48% <22.22%> (?)
_4	35.16% <22.22%> (?)

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