feat(cli): Setup command for mailer #26816

Job	Run time
📖 Only doc changes?	50s
✅ Check constraints, dependencies, and package.json's	17s
🌲 Tutorial E2E / ${{ matrix.os }} / node 18 latest	0s
✅ Check constraints, dependencies, and package.json's	0s
🏗 Build, lint, test / ${{ matrix.os }} / node 18 latest	0s
🔄 Smoke test / ${{ matrix.os }} / node 18 latest	0s
🔭 Telemetry check / ${{ matrix.os }} / node 18 latest	0s
🏗 Build, lint, test / ubuntu-latest / node 18 latest	14m 19s
🏗 Build, lint, test / windows-latest / node 18 latest	31m 13s
🔄 Smoke tests / ubuntu-latest / vite / node 18 latest	22m 21s
🐘 RSC related changes?	37s
🔄 Smoke tests / ubuntu-latest / webpack / node 18 latest	25m 50s
🔭 Telemetry check / ubuntu-latest / node 18 latest	13m 40s
🔄 Smoke tests / windows-latest / vite / node 18 latest	30m 31s
🌲 Tutorial E2E / vite / node 18 latest	15m 54s
🔭 Telemetry check / windows-latest / node 18 latest	18m 10s
🔄 Smoke tests / windows-latest / webpack / node 18 latest	42m 3s
🌲 Tutorial E2E / webpack / node 18 latest	19m 1s
🔄🐘 RSC Smoke tests / ubuntu-latest	1s
🔄🐘 RSC Smoke tests / windows-latest	2s
🔄🐘 RSC Smoke tests / ${{ matrix.os }}	0s
	3h 54m 49s

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