fix: keep backward compatibility with event.node.req.url

[pi0]

🔗 Linked issue

(failing tests against nuxt)

❓ 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

This PR adds backward compatibility to the changes in #438 for event.path support. While we ideally could benefit from a single and normalized getter, it makes issues on edge cases when we are depending on legacy express like behavior (nuxt vite intention) to allow:

• Supporting not normalized routes with double slashes (/module/@fs//...)
• Supporting to manually modify event path by modifying event.node.req.url directly
• Allowing to use custom modified URL in same tick

Because of this, this PR reverts event.path behavior to prefer future _path prop if exists and otherwise return (not normalized) node.req.url and also preserves node.req.originalPath

Also to avoid issues with same tick modification, app handler directly reads from event.node.req.url without depending on getter which strangely keeps failing when using getter.

📝 Checklist

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

[codecov]

Codecov Report

Merging #471 (44345e9) into main (51ec2bb) will increase coverage by 0.03%.
The diff coverage is 86.48%.

@@            Coverage Diff             @@
##             main     #471      +/-   ##
==========================================
+ Coverage   79.63%   79.66%   +0.03%     
==========================================
  Files          27       27              
  Lines        2980     2995      +15     
  Branches      436      442       +6     
==========================================
+ Hits         2373     2386      +13     
  Misses        607      607              
- Partials        0        2       +2     

Files Changed	Coverage Δ
src/utils/request.ts	98.66% <80.00%> (+0.06%)	⬆️
src/utils/route.ts	93.33% <85.71%> (+3.85%)	⬆️
src/app.ts	97.34% <91.66%> (-0.35%)	⬇️
src/event/event.ts	73.68% <100.00%> (-2.00%)	⬇️