feat(segkit): add doctor command with Homebrew/applesimutils auto-install #319

Job	Run time
Lint	54s
Detect Changes	5s
Segkit CLI	40s
Device Config Tests	40s
Shell Script Tests	42s
android-e2e / Android E2E - max	6m 9s
ios-e2e / iOS E2E - max	7m 12s
react-native-e2e / React Native E2E - web-none	2m 54s
react-native-e2e / React Native E2E - ios-max	9m 29s
react-native-e2e / React Native E2E - android-max	6m 14s
All PR Checks Passed	2s
	35m 1s

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