fix: 修复 YAML 处理 undefined 的问题

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.400",
+  "version": "2.14.401",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/utils/yaml.js

@@ -17,16 +17,16 @@ function retry(fn, content, ...args) {
 }
 
 export function safeLoad(content, ...args) {
-    return retry(YAML.safeLoad, content, ...args);
+    return retry(YAML.safeLoad, JSON.parse(JSON.stringify(content)), ...args);
 }
 export function load(content, ...args) {
-    return retry(YAML.load, content, ...args);
+    return retry(YAML.load, JSON.parse(JSON.stringify(content)), ...args);
 }
-export function safeDump(...args) {
-    return YAML.safeDump(...args);
+export function safeDump(content, ...args) {
+    return YAML.safeDump(JSON.parse(JSON.stringify(content)), ...args);
 }
-export function dump(...args) {
-    return YAML.dump(...args);
+export function dump(content, ...args) {
+    return YAML.dump(JSON.parse(JSON.stringify(content)), ...args);
 }
 
 export default {