Move LDM loadedDictEnd and final nextToUpdate publication out of the C
dictionary-content callbacks. Rust now writes through compact projections with
live window bases, while C retains the configuration-sensitive window,
matchfinder, and LDM operations.
Test Plan:
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo check --tests
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo clippy --tests -- -A clippy::manual-bits -D warnings
- ulimit -v 41943040; make -j1
- ulimit -v 41943040; make -j1 -C tests test
ddidderr
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