chore: improve release workflow with clean and build steps

[dnim]

• Add clean script to remove dist directory
• Update release script to run clean and build before release-it
• Ensures fresh build artifacts for each release

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.08%. Comparing base (6807a94) to head (d2f47a8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #31   +/-   ##
=======================================
  Coverage   84.08%   84.08%           
=======================================
  Files           9        9           
  Lines         685      685           
  Branches      166      171    +5     
=======================================
  Hits          576      576           
  Misses        109      109           

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