Route CDP Page.printToPDF and CLI PDF dumps through an owned snapshot PDF
backend with embedded subset fonts and logical text cluster mappings.
Preserve print layout isolation, page selection, and bounded local raster
fallbacks. Pin Krilla to upstream Git and share its font parsing dependencies
with the existing rendering stack where version constraints allow.
Add PDF extraction, pagination, graphics, and print lifecycle regressions,
fixed font fixtures, and reader and CDP smoke checks.
Refs #279.
Group ignored reasons, values and nonempty properties behind one optional box. Use nonzero backend IDs and serialize fixed role/name kinds on demand, reducing the common AX node from 296 to 96 bytes while preserving payload shape and field order.
Add reproducible CLI and native construction benchmarks. Generated 40000-row text dumps use 382.6 to 341.5 MiB peak RSS; 200000-row text dumps use 1753.5 to 1612.8 MiB. Record the roughly 5.5 percent native construction cost for dense ignored nodes alongside the memory gains.
Validation: cargo fmt --all; workspace clippy with all targets/features and warnings denied; cargo nextest run --no-fail-fast (19890 passed, 17 skipped). All 188 formal benchmark samples match their corresponding before/after outputs.
Move Fontconfig matching, substitution policy, and the Fontique lookup cache into moli-system-fonts. Keep CSS family adaptation in moli-layout, migrate tests and fixtures, and retain the Skia notice in source comments.
ldm0
Donough Liu