* Directory walkers key visited directories by (dev, inode); stats skips non-regular or oversized .rs targets
* address review: record a walked directory only within the depth limit; stats skips symlinked sources and bounds the read
* address review: rescan a directory reached from a shallower path, skipping files already collected
* xtask stats: test the directory walk (links, identity, size limit)
* address review: create the test directories atomically and privately
* xtask stats tests: no unreachable! in the directory helper
* gridcraft check: unit-test that each workbook is listed once whatever path reaches it
* CI: dev builds keep line tables only
* CI: one integration-test binary per crate
* CI: xtask runs tests with nextest, doctests apart, --keep-going on clippy and wasm
cargo xtask test runs the workspace tests (--lib --bins --tests) with cargo-nextest when it is installed, else cargo test, then the doctests. cargo xtask ci uses the same two steps.
* CI: docs name cargo xtask test
* CI: agent guides name the moved fuzz test
* CI: tests added on main join their crate's test binary
Dylan M. Taylor