SK-313 // write scraped metrics into exported trace file

[drmorr0]

Description and Rationale

• The trace store now writes metrics into the exported trace file

How

• TODO

Test Steps

• TODO

Other Notes

• TODO

• I certify that this PR does not contain any code that has been generated with GitHub Copilot or any other AI-based code generation tool, in accordance with this project's policies.

[codecov]

Codecov Report

❌ Patch coverage is 19.79167% with 77 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.02%. Comparing base (b403929) to head (2d9af68).

Files with missing lines	Patch %	Lines
sk-tracer/src/store.rs	30.35%	39 Missing ⚠️
sk-tracer/src/owners_index.rs	10.00%	18 Missing ⚠️
sk-core/src/trace/pod_sim_data.rs	0.00%	17 Missing ⚠️
sk-tracer/src/manager.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #275      +/-   ##
==========================================
- Coverage   79.56%   78.02%   -1.54%     
==========================================
  Files          65       65              
  Lines        4183     4251      +68     
==========================================
- Hits         3328     3317      -11     
- Misses        855      934      +79     

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[linear-code]

SK-313