feat(#196): full-cycle shell-tests

[h1alexbel]

closes #196

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PR-Codex overview

This PR adds a new test script and updates the GitHub Actions workflow to automate shell tests for a Rust application. It includes a license notice and checks server startup and shutdown.

Detailed summary

• Added a license notice to tests/full-cycle.sh.
• Created a script in tests/full-cycle.sh to test server startup and shutdown.
• Added a new GitHub Actions workflow in .github/workflows/shell-tests.yml to run shell tests on push and pull requests to master.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.69%. Comparing base (c513ad7) to head (144d02a).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #200   +/-   ##
=======================================
  Coverage   74.69%   74.69%           
=======================================
  Files          20       20           
  Lines         328      328           
=======================================
  Hits          245      245           
  Misses         83       83           

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[h1alexbel]

@rultor merge

[rultor]

@rultor merge

@h1alexbel OK, I'll try to merge now. You can check the progress of the merge here.

[rultor]

@rultor merge

@h1alexbel Done! FYI, the full log is here (took me 12min).

[0crat]

@h1alexbel Thanks for your contribution! We've reviewed your submission and calculated your points according to our policy. You've earned +4 points: +4 as a base, -16 for lack of code review, -4 for insufficient comments (only 3), and +20 to ensure a minimum reward. While we appreciate your effort, please note that code reviews and comments are crucial for maintaining code quality. Your current balance stands at +39. We encourage you to continue contributing and to engage more in the review process for future submissions.