Refactor YAML variable definitions and enhance logging in FileItem class

[httpdss]

Standardize variable definitions in YAML files for consistency and improve logging functionality in the FileItem class to aid in debugging.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 60.20%. Comparing base (c8ae940) to head (85d6e28).

Files with missing lines	Patch %	Lines
struct_module/file_item.py	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #60      +/-   ##
==========================================
+ Coverage   60.18%   60.20%   +0.01%     
==========================================
  Files          21       21              
  Lines         977      980       +3     
  Branches      141      141              
==========================================
+ Hits          588      590       +2     
- Misses        364      365       +1     
  Partials       25       25              

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