Benchmark of the WASM exception migration (native -fwasm-exceptions vs
legacy JS-EH) for eeschema + pcbnew, O1/O2, headed/headless: native-EH is
~22%/26% smaller gzip, ~30-35% faster load, and faster ops/FPS; ship the
post-link wasm-opt tail at -O1, not -O2. Full tables + methodology in the doc.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
