Workers P2: Prüfstand mit Skript-API und Playwright-Abnahme

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

scripts/workers-harness/index.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="de">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="icon" href="data:," />
+    <link rel="stylesheet" href="/harness.css" />
+    <title>Hustler-Prüfstand</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script src="/harness.js"></script>
+  </body>
+</html>