修改标题，独立系统设置，可缓存

index.html

@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Spine Particle · 阶段1 Spike</title>
+    <title>Spine粒子编辑器</title>
     <style>
       html, body { margin: 0; padding: 0; background: #111; color: #eee; font-family: system-ui, -apple-system, sans-serif; }
       #app { display: flex; flex-direction: column; height: 100vh; }