docs(site): add a what's new guide #9

Job	Run time
build-matrix / Build matrix	6s
(Test) Publish npm binaries (darwin-x64, macos-15-intel, x86_64-apple-darwin)	4m 37s
(Test) Publish npm binaries (linux-x64-glibc, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 56s
(Test) Publish npm binaries (win32-arm64-msvc, windows-2022, aarch64-pc-windows-msvc)	3m 55s
(Test) Publish npm binaries (linux-arm64-musl, ubuntu-latest, aarch64-unknown-linux-musl)	2m 5s
(Test) Publish npm binaries (linux-arm64-glibc, ubuntu-latest, aarch64-unknown-linux-gnu)	2m 0s
(Test) Publish npm binaries (darwin-arm64, macos-latest, aarch64-apple-darwin)	2m 11s
(Test) Publish npm binaries (win32-x64-msvc, windows-2022, x86_64-pc-windows-msvc)	3m 33s
(Test) Publish npm binaries (linux-x64-musl, ubuntu-latest, x86_64-unknown-linux-musl)	2m 5s
(Test) Publish npm package	24s
	22m 52s

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