Huge Project Corpus

tools/huge_corpus.py pressure-tests Azazel against substantial Zig projects, including ZLS, libxev, River, Mach, MicroZig, libvaxis, Capy, zig-gamedev, TigerBeetle, and Ghostty.

The corpus deliberately distinguishes upstream build success from Azazel replacement evidence. An upstream result runs the project's own build.zig; an Azazel executable-parity result means a modeled target slice actually compiled through the generated Azazel graph. Full-project parity is not claimed from a successful slice.

See HUGE_PROJECT_CORPUS.md for the detailed matrix.