fix tool result messages not containing latest user question

[jiapingzeng]

Description

Add user message to tool result request

Issues Resolved

fixes #10756

Screenshot

Testing the changes

Verified from browser network tab that chat is sending correct messages.

Changelog

• fix: [BUG][Chat] fix tool result messages not containing latest user question

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

[github-actions]

❌ Changelog Entry Missing Hyphen

Changelog entries must begin with a hyphen (-).

[codecov]

Codecov Report

❌ Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.51%. Comparing base (b175397) to head (e19cffd).
⚠️ Report is 124 commits behind head on main.

Files with missing lines	Patch %	Lines
src/plugins/chat/public/components/chat_window.tsx	0.00%	4 Missing ⚠️
...plugins/chat/public/services/chat_event_handler.ts	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10758      +/-   ##
==========================================
- Coverage   60.51%   60.51%   -0.01%     
==========================================
  Files        4485     4485              
  Lines      120190   120191       +1     
  Branches    19912    19911       -1     
==========================================
- Hits        72737    72731       -6     
- Misses      42410    42417       +7     
  Partials     5043     5043              

Flag	Coverage Δ
Linux_1	26.58% <ø> (ø)
Linux_2	38.82% <ø> (ø)
Linux_3	?
Linux_4	33.28% <ø> (ø)
Windows_1	26.59% <ø> (ø)
Windows_2	38.79% <ø> (ø)
Windows_3	39.09% <28.57%> (-0.01%)	⬇️
Windows_4	33.28% <ø> (-0.01%)	⬇️

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[ananzh]

close it as it is included in #10983
thanks @jiapingzeng for the contribution 💚