fix(lint): resolve staticcheck issues and improve code quality

[itsllyaz]

This PR resolves several staticcheck lint issues, got the report from golangci-lint.

Changes

• Applied De Morgan’s law to simplify boolean expressions
• Replaced fmt.Sprintf with fmt.Fprintf to avoid unnecessary allocations
• Removed redundant embedded field access
• Improved overall code readability and idiomatic Go usage

Impact

• No functional changes
• Minor performance improvements
• Cleaner and more maintainable code

Notes

All changes were verified with:

golangci-lint run

there is no remaining lint issues.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.07%. Comparing base (22e4b71) to head (b1d350e).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2941      +/-   ##
==========================================
- Coverage   93.07%   93.07%   -0.01%     
==========================================
  Files          43       43              
  Lines        4506     4503       -3     
==========================================
- Hits         4194     4191       -3     
  Misses        195      195              
  Partials      117      117              

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[aldas]

please run go fmt

[aldas]

LGTM

[aldas]

Thanks @itsllyaz