Two research dossiers under docs/features:
- async/: Asyncify currData contention — the clipboard crash and post-idle
tool hang as one disease (single global suspension slot, three producers),
asyncify internals walkthroughs, prior art, arbiter designs A/B.
- wasm-exceptions/: -fexceptions vs -fwasm-exceptions — measured invoke-driven
share of the asyncify tax on pcbnew (59% raw / 64% gzip; download 64.5->36 MB
if migrated), KiCad dialog-in-catch audit (85 direct / 93 review of 636,
catch_audit.py included), binaryen toolchain status (partial EH support since
v125; TryTable unsupported), and a catch-arm-hoisting pre-pass design that
would obsolete the KiCad-side refactor. Cross-linked with the parked
KICAD_WASM_EH end-to-end experiment (docs/wasm-exceptions-experiment.md).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
66ce367703