vfs: add minimal node:vfs subsystem #7130

Job	Run time
Build slim tarball	1m 14s
aarch64-linux: Cache V8 build	23s
x86_64-darwin: with shared libraries	36m 56s
aarch64-darwin: with shared libraries	25m 57s
x86_64-linux: with shared libraries	32m 10s
aarch64-linux: with shared openssl-3.5.5	26m 4s
aarch64-linux: with shared openssl-3.0.19	25m 17s
aarch64-linux: with shared openssl-3.6.1	26m 10s
aarch64-linux: with shared openssl-1.1.1w	25m 27s
aarch64-linux: with shared boringssl-0.20260413.0	26m 42s
aarch64-linux: with shared openssl-4.0.0	27m 3s
	4h 13m 23s

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