fix: 修复 surge mac 未开启 mihomo 时, 对于不支持的节点未报错, 导致出现 proxy 为 undefined 的问题

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.404",
+  "version": "2.14.405",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/core/proxy-utils/producers/surgemac.js

@@ -25,6 +25,10 @@ export default function SurgeMac_Producer() {
                             `${proxy.name} is not supported on ${targetPlatform}, try to use Mihomo(SurgeMac - External Proxy Program) instead`,
                         );
                         return mihomo(proxy, type, opts);
+                    } else {
+                        throw new Error(
+                            `Surge for macOS 可手动指定链接参数 target=SurgeMac 或在 同步配置 中指定 SurgeMac 来启用 mihomo 支援 Surge 本身不支持的协议`,
+                        );
                     }
                 }
             }