feat(compress): improve compress middleware

[nitedani]

Improvements:

• Content-Length threshold for compression
• Handling of already compressed responses
• Cache-Control: no-transform handling
• Handling of custom Content-Type headers

Fixes:

• compress middleware gzips images #3262

• Add tests

• Run tests

• bun run format:fix && bun run lint:fix to format the code

• Add TSDoc/JSDoc to document the code

[usualoma]

Thanks for making the pull request! I think this pull request will greatly improve the "compress" middleware.

I've made some comments and hoped you could check them.

[nitedani]

Thank you too :) Pushed the changes.

[usualoma]

Thank you!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.31%. Comparing base (d1c7f6f) to head (f2de818).
Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3317   +/-   ##
=======================================
  Coverage   96.31%   96.31%           
=======================================
  Files         151      151           
  Lines       15368    15401   +33     
  Branches     2693     2696    +3     
=======================================
+ Hits        14801    14834   +33     
  Misses        567      567           

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[yusukebe]

LGTM!

[yusukebe]

Hi @nitedani

Awesome improvement! I'll merge this into the main and include it in the next patch release. Thank you!