Logging and Metrics

[dfarr]

Logs:

• https://go.dev/blog/slog

Metrics:

• prometheus

Closes #3

[codecov]

Codecov Report

Merging #5 (82ecbda) into main (48a8576) will decrease coverage by 0.81%.
The diff coverage is 52.33%.

@@            Coverage Diff             @@
##             main       #5      +/-   ##
==========================================
- Coverage   73.97%   73.17%   -0.81%     
==========================================
  Files          39       39              
  Lines        3109     3251     +142     
==========================================
+ Hits         2300     2379      +79     
- Misses        663      723      +60     
- Partials      146      149       +3     

Files Changed	Coverage Δ
internal/aio/aio.go	0.00% <0.00%> (ø)
internal/app/coroutines/deleteSubscription.go	0.00% <0.00%> (ø)
internal/kernel/types/aio.go	0.00% <0.00%> (ø)
test/dst/model.go	54.33% <0.00%> (ø)
internal/app/coroutines/cancelPromise.go	83.69% <14.28%> (-2.83%)	⬇️
internal/app/coroutines/rejectPromise.go	83.69% <14.28%> (-2.83%)	⬇️
internal/app/coroutines/resolvePromise.go	83.69% <14.28%> (-2.83%)	⬇️
internal/app/coroutines/createPromise.go	80.64% <20.00%> (-2.14%)	⬇️
internal/app/coroutines/readPromise.go	75.90% <20.00%> (-3.85%)	⬇️
internal/app/coroutines/notifiySubscriptions.go	67.48% <25.00%> (-2.89%)	⬇️
... and 11 more

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