Update Healer Man server

scripts/combat-effects/shadowfiend-preview.html

@@ -0,0 +1,7 @@
+<!doctype html>
+<html lang="en">
+  <head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>Shadowfiend summon preview</title></head>
+  <body style="margin:0;background:#0b121b;color:#e8eef8;font:14px system-ui">
+    <div id="root"></div><script type="module" src="/src/dev/ShadowfiendPreview.tsx"></script>
+  </body>
+</html>