Replace the dictionary loader's C match-state publication callback with a live
field projection. Rust now publishes nextToUpdate, loadedDictEnd, and
forceNonContiguous at the existing orchestration point while C retains the
private match-state layout. Keep the window base indirect so a preceding
window update cannot leave Rust with a stale offset origin.
Test Plan:
- git diff --cached --check
- capped cargo check --tests
- capped cargo clippy --tests -- -A clippy::manual-bits -D warnings
- capped make -j1
- capped make -j1 -C tests test
ddidderr
87b616c49b