{bin,domain,pkg}: Adds golangci-lint & fixes.

[chris-ramon]

Details

• Closes: {*}: Add golangci-lint. #13.
• {domain,pkg}: adds golangci-lint fixes.
• bin/lint: adds script.

Test Plan

✔️ Tested app works as expected.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 11.76471% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.23%. Comparing base (5a8c62d) to head (54c67dc).

Files with missing lines	Patch %	Lines
domain/auth/handler.go	6.25%	12 Missing and 3 partials ⚠️
❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@             Coverage Diff              @@
##              main      #18       +/-   ##
============================================
- Coverage   100.00%   86.23%   -13.77%     
============================================
  Files            4        4               
  Lines           98      109       +11     
============================================
- Hits            98       94        -4     
- Misses           0       12       +12     
- Partials         0        3        +3     

Flag	Coverage Δ
unittests	86.23% <11.76%> (-13.77%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[chris-ramon]

LGTM 👍 🚢