fix(http, server): handle missing resources with http 404

[Aareksio]

🔗 Linked issue

unjs/ipx#204

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

HTTP driver did not properly return null when resource was not found. The error was masked by createStorageServer newer throwing 404 as actual HTTP server should. This PR makes the createStorageServer return 404 and http driver to properly catch 404 and return null.

I have ran the changes against #365 and the behavior stays the same.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (fc9f6a9) 63.92% compared to head (691d13a) 64.06%.

Files	Patch %	Lines
src/drivers/http.ts	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #367      +/-   ##
==========================================
+ Coverage   63.92%   64.06%   +0.14%     
==========================================
  Files          41       41              
  Lines        4102     4121      +19     
  Branches      489      493       +4     
==========================================
+ Hits         2622     2640      +18     
- Misses       1468     1469       +1     
  Partials       12       12              

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[pi0]

Thanks!

Small behavior changes to be documented in release notes:

• HTTP server throws 404 for uneset values. This requires unstorage clients to update to the latest version to support handling
• HTTP driver throws error for hasItem when response is not 404 (previously always returning null)