feat: Ship docs directly at `vite-plus/docs`. #8028

Job	Run time
optimize-ci	3s
detect-changes	7s
Test (Linux x64 musl)	3m 2s
Lint	47s
download-previous-rolldown-binaries	12s
Test (namespace-profile-linux-x64-default, x86_64-unknown-linux-gnu)	1m 11s
Test (windows-latest, x86_64-pc-windows-msvc)	3m 43s
Test (macos-latest, aarch64-apple-darwin)	1m 59s
CLI E2E test (Linux x64 musl)	3m 46s
CLI E2E test (windows-latest, x86_64-pc-windows-msvc)	4m 16s
CLI E2E test (macos-latest, aarch64-apple-darwin)	2m 15s
CLI E2E test (namespace-profile-linux-x64-default, x86_64-unknown-linux-gnu)	1m 12s
CLI snap test (aarch64-apple-darwin, 1/3)	2m 54s
CLI snap test (x86_64-unknown-linux-gnu, 2/3)	1m 56s
CLI snap test (x86_64-pc-windows-msvc, 1/3)	7m 49s
CLI snap test (x86_64-pc-windows-msvc, 3/3)	5m 34s
CLI snap test (aarch64-apple-darwin, 2/3)	2m 51s
CLI snap test (x86_64-pc-windows-msvc, 2/3)	4m 18s
CLI snap test (aarch64-apple-darwin, 3/3)	4m 13s
CLI snap test (x86_64-unknown-linux-gnu, 1/3)	1m 29s
CLI snap test (x86_64-unknown-linux-gnu, 3/3)	1m 53s
Local CLI `vp install` E2E test	0s
done	3s
	55m 33s

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