feat(worker): circuit breaker

[vm-001]

Summary

A fast and distributed circuit breaker.

[codecov]

Codecov Report

❌ Patch coverage is 53.26087% with 129 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
worker/circuitbreaker/manager.go	55.88%	59 Missing and 1 partial ⚠️
worker/worker.go	19.51%	32 Missing and 1 partial ⚠️
db/dao/dao.go	7.69%	12 Missing ⚠️
config/modules/worker.go	20.00%	4 Missing and 4 partials ⚠️
db/dao/endpoint_dao.go	0.00%	8 Missing ⚠️
worker/circuitbreaker/unix_bucket.go	69.56%	5 Missing and 2 partials ⚠️
db/dao/attempt_dao.go	50.00%	1 Missing ⚠️

Flag	Coverage Δ
integration	?
integration-o11	40.86% <53.26%> (+0.49%)	⬆️
unit	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
app/app.go	64.15% <100.00%> (-17.50%)	⬇️
constants/cache_key.go	87.50% <100.00%> (-12.50%)	⬇️
worker/circuitbreaker/recorder.go	100.00% <100.00%> (ø)
db/dao/attempt_dao.go	73.68% <50.00%> (-26.32%)	⬇️
worker/circuitbreaker/unix_bucket.go	69.56% <69.56%> (ø)
config/modules/worker.go	16.32% <20.00%> (-34.96%)	⬇️
db/dao/endpoint_dao.go	65.21% <0.00%> (-34.79%)	⬇️
db/dao/dao.go	52.41% <7.69%> (-36.89%)	⬇️
worker/worker.go	54.59% <19.51%> (-23.06%)	⬇️
worker/circuitbreaker/manager.go	55.88% <55.88%> (ø)

... and 131 files with indirect coverage changes

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