[rustatian]

• Use JSON v2 for job metadata and runtime pipeline options.
• Preserve numeric producer timeouts and lowercase offset field names.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.78%. Comparing base (907aa9a) to head (dacb473).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #643      +/-   ##
==========================================
+ Coverage   72.01%   72.78%   +0.76%     
==========================================
  Files           6        6              
  Lines         654      654              
==========================================
+ Hits          471      476       +5     
+ Misses        183      178       -5     

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