feat(runtime): make techdemo interactions declarative

req: examples/005

req: htmx_equivalents/002

req: dx/008

req: form/002

examples/techdemo/src/main.rs

@@ -366,21 +366,6 @@ fn shell(body: String) -> String {
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>slhx Techdemo</title>
   <script src="/slhx.js" defer></script>
-  <script>
-    function slhxTechdemoLaunch(button) {{
-      const form = button.closest('form');
-      const data = new URLSearchParams(new FormData(form));
-      data.set('__h', button.getAttribute('data-hid'));
-      fetch('/', {{
-        method: 'POST',
-        headers: {{ 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8', 'Accept': 'application/slhx' }},
-        body: data
-      }})
-      .then((response) => response.arrayBuffer())
-      .then((buffer) => window.slhx.applyBatch(buffer, button.closest('[data-slhx-root]')));
-      return false;
-    }}
-  </script>
   <style>
     :root {{ color-scheme: dark; --bg:#070814; --panel:rgba(255,255,255,.08); --line:rgba(255,255,255,.16); --text:#f7f7ff; --muted:#aeb3d8; --hot:#ff4fd8; --cyan:#44e7ff; --lime:#b8ff5a; --amber:#ffd166; }}
     * {{ box-sizing:border-box; min-width:0; }}