feat(core): 在关闭时清理虚拟文件系统并优化文件加载逻辑

- 在加载文件前，增加清除虚拟文件系统的操作
- 在多个地方添加 VFileSystem.clear() 调用，以确保文件切换时清理虚拟文件系统
- 修改文件加载逻辑，只允许加载 .gp 后缀的文件
- 更新错误提示信息，明确指出需要选择 .gp 文件

src/core/service/dataFileService/VFileSystem.tsx

@@ -20,6 +20,7 @@ export namespace VFileSystem {
     setMetaData(JSON.stringify(StageDumper.dump()));
   }
   export async function loadFromPath(path: string) {
+    await clear();
     const data = await readFile(path);
     const zip = await jszip.loadAsync(data);
     const entries = zip.files;

src/pages/_app.tsx

@@ -21,6 +21,7 @@ import LogicNodePanel from "./_logic_node_panel";
 import RecentFilesPanel from "./_recent_files_panel";
 import StartFilePanel from "./_start_file_panel";
 import TagPanel from "./_tag_panel";
+import { VFileSystem } from "../core/service/dataFileService/VFileSystem";
 
 export default function App() {
   const [maxmized, setMaxmized] = React.useState(false);
@@ -104,6 +105,7 @@ export default function App() {
               {
                 text: "不保存",
                 onClick: async () => {
+                  await VFileSystem.clear();
                   await getCurrentWindow().destroy();
                 },
               },
@@ -118,10 +120,12 @@ export default function App() {
           if (isAutoSave) {
             // 开启了自动保存，不弹窗
             await StageSaveManager.saveHandle(file, StageDumper.dump());
+            await VFileSystem.clear();
             getCurrentWindow().destroy();
           } else {
             // 没开启自动保存，逐步确认
             if (StageSaveManager.isSaved()) {
+              await VFileSystem.clear();
               getCurrentWindow().destroy();
             } else {
               await Dialog.show({
@@ -132,6 +136,7 @@ export default function App() {
                     text: "保存并关闭",
                     onClick: async () => {
                       await StageSaveManager.saveHandle(file, StageDumper.dump());
+                      await VFileSystem.clear();
                       await getCurrentWindow().destroy();
                     },
                   },

src/pages/_app_menu.tsx

@@ -46,6 +46,7 @@ import { Stage } from "../core/stage/Stage";
 import { GraphMethods } from "../core/stage/stageManager/basicMethods/GraphMethods";
 import { TextNode } from "../core/stage/stageObject/entity/TextNode";
 import { PathString } from "../utils/pathString";
+import { VFileSystem } from "../core/service/dataFileService/VFileSystem";
 
 export default function AppMenu({ className = "", open = false }: { className?: string; open: boolean }) {
   const navigate = useNavigate();
@@ -57,9 +58,10 @@ export default function AppMenu({ className = "", open = false }: { className?:
   /**
    * 新建草稿
    */
-  const onNewDraft = () => {
+  const onNewDraft = async () => {
     if (StageSaveManager.isSaved() || StageManager.isEmpty()) {
       StageManager.destroy();
+      await VFileSystem.clear();
       setFile("Project Graph");
     } else {
       // 当前文件未保存
@@ -76,8 +78,9 @@ export default function AppMenu({ className = "", open = false }: { className?:
           },
           {
             text: "丢弃当前并直接新开",
-            onClick: () => {
+            onClick: async () => {
               StageManager.destroy();
+              await VFileSystem.clear();
               setFile("Project Graph");
             },
           },

src/pages/_recent_files_panel.tsx

@@ -76,9 +76,9 @@ export default function RecentFilesPanel() {
     try {
       const path = file.path;
       setFile(decodeURIComponent(path));
-      if (isDesktop && !path.endsWith(".json")) {
+      if (isDesktop && !path.endsWith(".gp")) {
         Dialog.show({
-          title: "请选择一个JSON文件",
+          title: "请选择一个GP文件",
           type: "error",
         });
         return;
@@ -87,7 +87,7 @@ export default function RecentFilesPanel() {
       setRecentFilePanelOpen(false);
     } catch (error) {
       Dialog.show({
-        title: "请选择正确的JSON文件",
+        title: "请选择正确的GP文件",
         content: String(error),
         type: "error",
       });

src/pages/_start_file_panel.tsx

@@ -157,9 +157,9 @@ export default function StartFilePanel({ open = false }: { open: boolean }) {
   const checkoutFile = (path: string) => {
     try {
       setFile(decodeURIComponent(path));
-      if (isDesktop && !path.endsWith(".json")) {
+      if (isDesktop && !path.endsWith(".gp")) {
         Dialog.show({
-          title: "请选择一个JSON文件",
+          title: "请选择一个GP文件",
           type: "error",
         });
         return;