chore: 官网拆分 homepage + 关于页瘦身 + 端口 5175（当前可用状态基线）

homepage/assets/icon.svg

@@ -0,0 +1,7 @@
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+  <path d="M258 326 454 512 258 698" fill="none" stroke="#f2f7f8" stroke-width="92" stroke-linecap="round" stroke-linejoin="round"/>
+  <path d="M500 698h244" fill="none" stroke="#55aef2" stroke-width="92" stroke-linecap="round"/>
+  <circle cx="750" cy="308" r="52" fill="#42d392"/>
+</svg>