[Feature] Add comparison report metadata in the local report

[popcornylu]

Also add the .metadata in the local report.

PR checklist

• [x] Ensure you have added or ran the appropriate tests for your PR.
• [x] DCO signed

[codecov[bot]]

Codecov Report

Merging #848 (60abe42) into main (306374a) will increase coverage by 0.03%. Report is 1 commits behind head on main. The diff coverage is 85.71%.

@@            Coverage Diff             @@
##             main     #848      +/-   ##
==========================================
+ Coverage   45.07%   45.10%   +0.03%     
==========================================
  Files          69       69              
  Lines        9769     9775       +6     
==========================================
+ Hits         4403     4409       +6     
  Misses       5366     5366              

Files Changed	Coverage Δ
piperider_cli/compare_report.py	29.85% <85.71%> (+1.20%)	:arrow_up:

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