refactor: move event.req and event.res to event.node.*

[pi0]

Ref #73

Using soft deprecation to use event.node.req and event.node.res instead of event.req and event.res preparing users for next iterations.

A new event.path getter also added to make accessing to path easier. (used path instead of url to avoid confusing hostname inclusion)

[codecov]

Codecov Report

Merging #231 (dac2e30) into main (dc8ee81) will decrease coverage by 0.15%.
The diff coverage is 71.91%.

@@            Coverage Diff             @@
##             main     #231      +/-   ##
==========================================
- Coverage   76.06%   75.90%   -0.16%     
==========================================
  Files          20       20              
  Lines        1199     1216      +17     
  Branches      224      224              
==========================================
+ Hits          912      923      +11     
- Misses        287      293       +6     

Impacted Files	Coverage Δ
src/utils/cache.ts	30.61% <0.00%> (ø)
src/utils/response.ts	61.71% <58.82%> (ø)
src/router.ts	94.73% <66.66%> (ø)
src/utils/proxy.ts	86.02% <71.42%> (ø)
src/utils/body.ts	83.78% <72.72%> (ø)
src/event/event.ts	47.94% <76.19%> (+5.08%)	⬆️
src/app.ts	93.05% <100.00%> (ø)
src/error.ts	79.31% <100.00%> (ø)
src/node.ts	85.18% <100.00%> (ø)
src/utils/cookie.ts	92.06% <100.00%> (ø)
... and 3 more

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[n4an]

preparing users for next iterations.

poor users, why are you so with them?
and I thought what system architects are for.

[pi0]

Please read #73 for motives and reasons for this refactor :)