fix: 修复明文 URL Scheme path 编码问题

- path 参数不再进行 URL encode，微信要求原始路径格式
- 修复跳转微信后提示"当前页面无法访问"的问题

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/MiniProgramLauncher/UrlSchemeLauncher.js

@@ -28,16 +28,14 @@ const MINIPROGRAM_APPID = 'wx0edeaab76d4fa414';
 /**
  * 生成明文 URL Scheme
  * 格式：weixin://dl/business/?appid=APPID&path=PATH&query=QUERY
+ * 注意：path 不需要 URL encode，否则微信无法识别
  */
 const generatePlainUrlScheme = (path, query) => {
-  const params = new URLSearchParams({
-    appid: MINIPROGRAM_APPID,
-    path: path || '',
-  });
+  let url = `weixin://dl/business/?appid=${MINIPROGRAM_APPID}&path=${path || ''}`;
   if (query) {
-    params.set('query', query);
+    url += `&query=${encodeURIComponent(query)}`;
   }
-  return `weixin://dl/business/?${params.toString()}`;
+  return url;
 };
 
 /**