fix: 修复应用品牌 logo 参数处理逻辑，确保正确传递到 URL 片段

lib/config/app_config.dart

@@ -50,11 +50,21 @@ class AppConfig {
       queryParameters['shell_app_name'] = trimmedName;
     }
 
+    final fragmentParameters = Map<String, String>.from(
+      Uri.splitQueryString(uri.fragment),
+    );
     final trimmedLogo = (appLogo ?? AppConfig.appLogo).trim();
     if (trimmedLogo.isNotEmpty) {
-      queryParameters['shell_app_logo'] = trimmedLogo;
+      fragmentParameters['shell_app_logo'] = trimmedLogo;
     }
 
-    return uri.replace(queryParameters: queryParameters).toString();
+    return uri
+        .replace(
+          queryParameters: queryParameters,
+          fragment: fragmentParameters.isEmpty
+              ? null
+              : Uri(queryParameters: fragmentParameters).query,
+        )
+        .toString();
   }
 }