The runtime.GOOS switch compiled the syslog branch into Windows builds,
where go-logging's syslog stub always returns an error. staticcheck
therefore reported SA4023 at logger.go:95 on every Windows lint run,
keeping `make lint-go` red on a clean main there while Linux CI never
saw it. console_windows.go and console_other.go now pick the backend at
build time, with each platform's behaviour unchanged.
No test can observe build-tag selection: `golangci-lint run` on Windows
goes from 1 issue to 0, and `GOOS=linux golangci-lint run
./internal/logger/...` stays clean.
MHSanaei