feat(airport): add the Hex Airport dispatch lab as a baseline snapshot

Six-side aprons, frozen levels, solver, rewards and verify scripts; the edge-runway readability work continues from here.

labs/airport/index.html

@@ -0,0 +1,36 @@
+<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+  <meta name="theme-color" content="#F5EFE7"><title>六角机场 · 起降调度</title>
+  <link rel="stylesheet" href="./style.css">
+</head>
+<body>
+<main class="airport">
+  <header class="topbar">
+    <button class="icon-button" id="levels" aria-label="选择关卡"><canvas data-icon="grid" width="48" height="48"></canvas></button>
+    <div><p class="eyebrow">六角机场</p><h1 id="level-title">第 1 关</h1></div>
+    <button class="icon-button" id="settings" aria-label="设置与玩法"><canvas data-icon="gear" width="48" height="48"></canvas></button>
+  </header>
+  <section class="status" aria-label="关卡状态">
+    <div><span class="caption">剩余操作</span><strong id="moves">—</strong></div>
+    <div class="mission"><span class="caption">接机进度</span><strong id="progress">0 / 1</strong><div class="progress-track"><i id="progress-bar"></i></div></div>
+  </section>
+  <div class="notice" id="notice" role="status" aria-live="polite">清开通路，把来机接入同色停机位。</div>
+  <section class="airspace" id="airspace" aria-label="机场棋盘与六边停机坪">
+    <canvas id="board" aria-label="六角轨道、停机位与飞机"></canvas>
+    <div id="plane-controls" aria-label="可操作飞机"></div>
+  </section>
+  <div class="rotation-controls">
+    <button id="left" class="rotate"><canvas data-icon="left" width="56" height="56"></canvas><span>左转</span><small>1 次</small></button>
+    <span class="rotation-note">只转轨道<br>飞机与机位保持不动</span>
+    <button id="right" class="rotate"><canvas data-icon="right" width="56" height="56"></canvas><span>右转</span><small>1 次</small></button>
+  </div>
+  <footer><button id="restart" class="restart"><canvas data-icon="restart" width="28" height="28"></canvas>重来</button><span id="level-name">留一点空间</span></footer>
+</main>
+<dialog id="menu"><button class="close" data-close aria-label="关闭">×</button><h2>选择关卡</h2><p>接齐来机即可过关，无需清空棋盘。</p><div id="level-list"></div></dialog>
+<dialog id="help"><button class="close" data-close aria-label="关闭">×</button><h2>起降调度</h2><ol><li>点击地面飞机，沿机头方向尝试起飞。</li><li>场外飞机停在棋盘六条边外侧的停机坪：上方、右上方、右下方、下方、左下方、左上方。</li><li>点击停机坪上的飞机，从它所在那条边寻找同色机位。</li><li>轨道不分颜色，飞机和机位按颜色匹配。</li><li>再次起飞的来机，会停到实际出口那条边的停机坪。</li><li>每次起降尝试和旋转都消耗一次操作。</li></ol><p>标有 P 的是已经停靠的来机。所有来机同时停好，才算完成。</p><button id="sound" class="secondary">声音：开</button><p class="small">独立实验版 · 马卡龙视觉 · 进度单独保存</p></dialog>
+<dialog id="result"><h2 id="result-title">全部到位</h2><p id="result-copy"></p><div class="dialog-actions"><button id="next" class="primary">下一关</button><button id="reward" class="primary" hidden></button><button id="retry" class="secondary">重新挑战</button></div><p id="reward-note" class="small" hidden>本实验版尚未接入真实广告，测试补充只用于验证奖励流程。</p></dialog>
+<script type="module" src="./app.js"></script>
+</body>
+</html>