Add comments to production code

[cjaehnen]

• Add code comments to all classes and files

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.04%. Comparing base (fd68011) to head (c40cfdc).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main      #10   +/-   ##
=========================================
  Coverage     95.04%   95.04%           
  Complexity       48       48           
=========================================
  Files            13       13           
  Lines           101      101           
  Branches          3        3           
=========================================
  Hits             96       96           
  Misses            2        2           
  Partials          3        3           

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