Expand description
Project-side filesystem scanner.
Walks Assets/ and Packages/ to enumerate every .cs directory and every
.asmdef/.asmref marker, then resolves directory ownership to assemblies.
Hot path: uses ignore::WalkBuilder::build_parallel() (with all gitignore
filters disabled) so traversal fans out across worker threads and shares
work via crossbeam_deque. See [[CLAUDE.md]] §“Performance” for budget.