feat: define simulator data contracts

tests/index.html

@@ -0,0 +1,27 @@
+<!doctype html>
+<html lang="ko">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>micarrsim tests</title>
+    <link rel="stylesheet" href="/packages/ui/app-shell.css" />
+    <style>
+      .test-shell { width: min(900px, calc(100% - 32px)); margin: 40px auto; }
+      .test-summary { color: var(--muted); }
+      .test-list { display: grid; gap: 8px; padding: 0; list-style: none; }
+      .test-result { padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
+      .test-result--pass { border-left: 4px solid var(--mint); }
+      .test-result--fail { border-left: 4px solid var(--danger); }
+      pre { overflow: auto; color: var(--danger); white-space: pre-wrap; }
+    </style>
+  </head>
+  <body>
+    <main class="test-shell">
+      <p class="eyebrow">Browser test runner</p>
+      <h1>micarrsim tests</h1>
+      <p class="test-summary" id="test-summary">테스트 실행 중…</p>
+      <ol class="test-list" id="test-results"></ol>
+    </main>
+    <script type="module" src="/tests/test-runner.js"></script>
+  </body>
+</html>