[iHiD]

boot.json's preload key is being renamed to precompile. The client-side test runner now reads precompile and falls back to preload, so it works with sysroots published under either name.

The list still goes to the kernel's boot() as the same positional argument, so the kernel sees no difference. Once every published boot.json uses precompile, the preload fallback in Kernel.boot and BootConfig can be removed.

🤖 Generated with Claude Code

[iHiD]

Superseded by #10692, which makes the same precompile/preload change and also adds the canvas handlers the newer kernels need and forwards Content-Encoding for the brotli-encoded artifacts.