feat(cmd): add doctor command for diagnosing configuration issues (#261) #298

Job	Run time
Race Detection	42s
Dependencies Check	13s
Lint (linux)	32s
Lint (windows)	40s
Lint (darwin)	32s
Build windows-amd64 on windows-latest	1m 28s
Build windows-arm64 on windows-latest	1m 43s
Build macos-arm64 on macos-latest	28s
Build linux-amd64 on ubuntu-latest	46s
Build macos-amd64 on macos-latest	1m 7s
	8m 11s

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