Producer Parity Fixtures

Fixtures used by src/parity-harness.ts.

fixtures/minimal-wysiwyg.html: CI-safe fixture with deterministic animation.
fixtures/good-preview-bad-producer.json: checkpoint metadata for the known border-radius parity regression.

Local run example

cd producer/tests/parity/fixtures
python3 -m http.server 4173

Then in another terminal:

cd producer
bun run parity:check \
  --preview-url "http://127.0.0.1:4173/minimal-wysiwyg.html" \
  --producer-url "http://127.0.0.1:4173/minimal-wysiwyg.html?mode=producer" \
  --checkpoints "0,0.5,1,1.5" \
  --allow-mismatch-ratio 0 \
  --emulate-producer-swap true