refactor(model_operation): restructure object creation and update methods; introduce logging and helper classes for better maintainability

[lihuacai168]

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[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 72.94118% with 23 lines in your changes missing coverage. Please review.

Project coverage is 94.80%. Comparing base (9918332) to head (0cad8a4).

Files with missing lines	Patch %	Lines
utils/model_opertion.py	72.94%	23 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
- Coverage   95.36%   94.80%   -0.57%     
==========================================
  Files          20       20              
  Lines         453      500      +47     
==========================================
+ Hits          432      474      +42     
- Misses         21       26       +5     

Flag	Coverage Δ
unittests	94.80% <72.94%> (-0.57%)	⬇️

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