docs: Removes obsolete QA document

[tuliomir]

Motivation

A QA document from before #139 was not relevant anymore and could be safely removed. Some additional clarification was added to the Readme file to explain its absence.

Acceptance Criteria

• Removes the obsolete QA document

Security Checklist

• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.42%. Comparing base (6f3d6e9) to head (0aa8d97).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #543   +/-   ##
=======================================
  Coverage   90.42%   90.42%           
=======================================
  Files          56       56           
  Lines        2422     2422           
  Branches      452      452           
=======================================
  Hits         2190     2190           
  Misses        216      216           
  Partials       16       16           

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[Copilot]

Pull Request Overview

This PR removes an obsolete QA document and updates documentation references to reflect that removal.

• Removed the QA document from the docs directory.
• Updated the docs/README.md file to remove the QA link.
• Updated the root README.md file to reference current automated testing guidelines instead of the removed QA test sequence.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
docs/README.md	Removed the outdated QA link.
docs/QA.md	Deleted the obsolete QA document.
README.md	Updated test section: replaced QA test sequence with current guidelines.