feat(org-chart): add core cards and fixed-layout integration

examples/org-chart/p1.html

@@ -0,0 +1,16 @@
+<!doctype html>
+<html lang="ko">
+<head>
+  <meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>HM OrgChart P1 · Full Composition</title><link rel="icon" href="data:,">
+  <link rel="stylesheet" href="./p1.css">
+</head>
+<body>
+  <main><div id="chart-host"></div></main>
+  <script type="module">
+    import * as api from './assets/index.js';
+    import { startP1 } from './p1-app.js';
+    startP1(api);
+  </script>
+</body>
+</html>