refactor: address nestif lint

[rsdmike]

No description provided.

[Copilot]

Pull request overview

This PR refactors code to address the nestif linter issue by reducing code nesting complexity and updates the README with explicit linter configuration.

Changes:

• Extracted nested password decryption logic into a separate decryptSecrets helper function to reduce nesting complexity in GetByID
• Added explicit --config=./.golangci.yml flag to lint commands in README for clearer configuration

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
internal/usecase/devices/repo.go	Refactored GetByID to extract nested password decryption logic into new decryptSecrets helper function, added entity import
README.md	Updated golangci-lint commands to explicitly specify config file path

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[codecov]

Codecov Report

❌ Patch coverage is 52.94118% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 39.67%. Comparing base (7e847c0) to head (414bcea).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/usecase/devices/repo.go	52.94%	4 Missing and 4 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #760   +/-   ##
=======================================
  Coverage   39.66%   39.67%           
=======================================
  Files         112      112           
  Lines       10652    10657    +5     
=======================================
+ Hits         4225     4228    +3     
- Misses       6046     6047    +1     
- Partials      381      382    +1     

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