WillTools 2026-09-09 -- clean snapshot of the development repo for review

History-free snapshot of the private development repository at cbe45c5
(2026-09-09). Code, docs and public catalogue only; no plant or job
knowledge layers, no client or job names (tools/scrub.py clean). The
intro deck is left out of this snapshot because its slide images could
not be checked for job drawings.

WillTools.extension/lib/vibe/webhost_demo/index.html

@@ -0,0 +1,32 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebHost demo</title>
+<style>
+  body { font-family: Consolas, monospace; margin: 16px; }
+  pre { background: #f0f0f0; padding: 8px; white-space: pre-wrap; }
+</style>
+</head>
+<body>
+<h3>WebHost demo</h3>
+<p>Posts <code>{"type":"hello"}</code> on load, then shows anything received.</p>
+<pre id="log"></pre>
+<script>
+function log(line) {
+  var pre = document.getElementById('log');
+  pre.textContent += line + "\n";
+}
+
+if (window.chrome && window.chrome.webview) {
+  window.chrome.webview.addEventListener('message', function (e) {
+    log('received: ' + JSON.stringify(e.data));
+  });
+  window.chrome.webview.postMessage({type: 'hello'});
+  log('posted: {"type":"hello"}');
+} else {
+  log('window.chrome.webview is not available -- not running inside WebView2.');
+}
+</script>
+</body>
+</html>