Automated fix by @leftibot.

What changed

Fix #6: Add WASM playground with hourly artifact sync
Add a GitHub Actions workflow that runs hourly to download the latest
chaiscript.js and chaiscript.wasm from the ChaiScript/ChaiScript wasm-latest
release and commit them to the playground/ directory. Create an interactive
playground page matching the site's existing Jekyll/Bootstrap design, with a
code editor and output panel powered by the Emscripten WASM build. Add a
Playground link to the site navigation.
Co-Authored-By: Claude Opus 4.6 (1M context) [email protected]

Files

 .github/workflows/update-wasm.yml |  46 +++++++++
 _includes/header.html             |   3 +
 playground.html                   | 196 ++++++++++++++++++++++++++++++++++++++
 test_playground.sh                |  51 ++++++++++
 4 files changed, 296 insertions(+)

Closes #6

Triggered by @lefticus.