[Do not merge] Add ContextVar for trace context propagation in tool functions

[sgoel-nr]

No description provided.

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	7		0	0	0.97s
✅ MARKDOWN	markdownlint	7	0	0	0	1.41s
✅ PYTHON	ruff	967	0	0	0	1.06s
✅ PYTHON	ruff-format	967	0	0	0	0.37s
✅ YAML	prettier	15	0	0	0	1.58s
✅ YAML	v8r	15		0	0	5.12s
✅ YAML	yamllint	15		0	0	0.66s

See detailed reports in MegaLinter artifacts

[codecov-commenter]

Codecov Report

❌ Patch coverage is 84.29752% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.71%. Comparing base (5758689) to head (29cc83e).
⚠️ Report is 1 commits behind head on develop-agentic-subcomponent-attrs.

Files with missing lines	Patch %	Lines
newrelic/hooks/mlmodel_autogen.py	83.62%	13 Missing and 6 partials ⚠️

Additional details and impacted files

@@                         Coverage Diff                          @@
##           develop-agentic-subcomponent-attrs    #1664    +/-   ##
====================================================================
  Coverage                               81.70%   81.71%            
====================================================================
  Files                                     210      210            
  Lines                                   24689    24805   +116     
  Branches                                 3884     3899    +15     
====================================================================
+ Hits                                    20173    20269    +96     
- Misses                                   3200     3214    +14     
- Partials                                 1316     1322     +6     

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