feat: enhance latency test logging and error handling

src/components/proxy/proxy-head.tsx

@@ -48,7 +48,7 @@ export const ProxyHead = (props: Props) => {
   useEffect(() => {
     delayManager.setUrl(
       groupName,
-      testUrl || url || verge?.default_latency_test!
+      testUrl || url || verge?.default_latency_test!,
     );
   }, [groupName, testUrl, verge?.default_latency_test]);
 
@@ -68,8 +68,10 @@ export const ProxyHead = (props: Props) => {
         color="inherit"
         title={t("Delay check")}
         onClick={() => {
+          console.log(`[ProxyHead] 点击延迟测试按钮，组: ${groupName}`);
           // Remind the user that it is custom test url
           if (testUrl?.trim() && textState !== "filter") {
+            console.log(`[ProxyHead] 使用自定义测试URL: ${testUrl}`);
             onHeadState({ textState: "url" });
           }
           props.onCheckDelay();