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

src-tauri/capabilities/default.json

@@ -11,6 +11,7 @@
     "core:event:default",
     "core:window:default",
     "core:window:allow-start-dragging",
-    "core:webview:allow-internal-toggle-devtools"
+    "core:webview:allow-internal-toggle-devtools",
+    "opener:default"
   ]
 }