fix: prevent rules editor from clearing custom rules before load

Changelog.md

@@ -17,6 +17,8 @@
 - 修复 JS 脚本验证因 console 方法调用导致的执行失败问题
 - 修复 macOS 内存压力下 WebView 渲染进程被系统终止引发的白屏与主进程内存泄漏
 - 删除覆盖全局热键开关的冗余写入
+- 修复编辑节点下base64解码未能正确处理非ASCII字符
+- 修复订阅规则编辑器自定义规则偶发显示为空的问题
 
 <details>
 <summary><strong> ✨ 新增功能 </strong></summary>

src/components/profile/rules-editor-viewer.tsx

@@ -276,6 +276,7 @@ export const RulesEditorViewer = (props: Props) => {
   const [prependSeq, setPrependSeq] = useState<string[]>([])
   const [appendSeq, setAppendSeq] = useState<string[]>([])
   const [deleteSeq, setDeleteSeq] = useState<string[]>([])
+  const hasLoadedSeqConfigRef = useRef(false)
 
   const filteredPrependSeq = useMemo(
     () => prependSeq.filter((rule) => match(rule)),
@@ -406,6 +407,7 @@ export const RulesEditorViewer = (props: Props) => {
     }
   }
   const fetchContent = useCallback(async () => {
+    hasLoadedSeqConfigRef.current = false
     const data = await readProfileFile(property)
     const obj = yaml.load(data) as ISeqProfileConfig | null
 
@@ -415,6 +417,7 @@ export const RulesEditorViewer = (props: Props) => {
 
     setPrevData(data)
     setCurrData(data)
+    hasLoadedSeqConfigRef.current = true
   }, [property])
 
   useEffect(() => {
@@ -432,11 +435,19 @@ export const RulesEditorViewer = (props: Props) => {
 
   // 优化：异步处理大数据yaml.dump，避免UI卡死
   useEffect(() => {
+    if (!hasLoadedSeqConfigRef.current) {
+      return
+    }
+
     if (!(prependSeq && appendSeq && deleteSeq)) {
       return
     }
 
     const serialize = () => {
+      if (!hasLoadedSeqConfigRef.current) {
+        return
+      }
+
       try {
         setCurrData(
           yaml.dump(