chore: 基线 — 已发布壁纸现状原样入库（未做任何改动）

dist/ 为 Wallpaper Engine 网页壁纸「【崩坏：星穹铁道】昔涟」(workshopid 3604974793, version 2)，
含两套预设 xilian / kv37，总计 105.1MB。本次提交不做任何修改，仅作为后续优化的对拍基线。

dist/index.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="zh">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>昔涟动态立绘</title>
+    <link rel="stylesheet" href="./styles/spine-player.css" />
+    <link rel="stylesheet" href="./styles/index.css" />
+  </head>
+  <body>
+    <div id="spine-container"></div>
+    <audio id="background-music"></audio>
+    <script type="text/javascript" src="./scripts/spine-player.js"></script>
+    <script type="module" src="./scripts/index.js"></script>
+  </body>
+</html>