Merge pull request 'std: migrate all `fs` APIs to `Io`' (#30232) from std.Io-fs into master

Reviewed-on: https://codeberg.org/ziglang/zig/pulls/30232
e55e6b5528Andrew Kelley committed on 12/27/2025, 1:10:46 PMparentsc3f2de560a1ba0
64 files changedLine totals unavailable