Moves the open-format validation + project-audit handlers out
of main.cpp:
--validate --validate-wom
--validate-wob --validate-woc
--validate-whm --validate-all
--validate-project --validate-project-open-only
--audit-project --bench-audit-project
--bench-validate-project
Also moves the four shared validate*Errors helpers (validateWom/
Wob/Woc/WhmErrors, ~365 lines) into the same module's anonymous
namespace — they were file-scope helpers in main.cpp used only
by these handlers, so co-locating eliminates the cross-TU
coupling.
main.cpp drops 19,446 → 18,396 lines (-1,050). Two build errors
caught during extraction (wrong include path for the WHM loader
header; missing #include for ContentPacker / std::set / std::map);
all fixed before commit.
