Fix SCUM file workbench interactions

platform_web/pages/PluginPageHostPage.test.tsx

@@ -99,6 +99,8 @@ describe("PluginPageHostPage", () => {
   it("keeps file workspace callbacks stable across parent operational refreshes", () => {
     expect(hostSource).toContain("readyPluginRef.current = readyPlugin");
     expect(hostSource).toContain("hostContextRef.current = hostContext");
+    expect(hostSource).toContain("refreshWorkspace: async ()");
+    expect(hostSource).toContain("platformApiClient.listGamePlugins()");
     expect(hostSource).toContain("}, [pluginId, serverId]);");
     expect(hostSource).not.toContain("}, [hostContext, readyPlugin, serverId]);");
   });

platform_web/pages/PluginPageHostPage.tsx

@@ -67,11 +67,24 @@ export function PluginPageHostPage({ params, onNavigate, initialPlugin, embedded
   readyPluginRef.current = readyPlugin;
   hostContextRef.current = hostContext;
   const workspaceActions = useMemo<PluginPageWorkspaceActions | undefined>(() => {
-    if (!pluginId || !serverId) return undefined;
+    if (!pluginId) return undefined;
     return {
+      refreshWorkspace: async () => {
+        const response = await platformApiClient.listGamePlugins();
+        const plugin = response.items.find((candidate) => candidate.id === pluginId);
+        if (!plugin) {
+          throw new Error("未找到已注册的插件声明。");
+        }
+        readyPluginRef.current = plugin;
+        setState({ status: "ready", plugin });
+        return plugin.fileWorkspace;
+      },
       requestFile: async (fileKey) => {
         const plugin = readyPluginRef.current;
         const context = hostContextRef.current;
+        if (!serverId) {
+          return { status: "denied", message: "插件页面没有绑定服务器，无法读取文件。" };
+        }
         if (!plugin || !context) {
           return { status: "denied", message: "插件页面上下文尚未就绪。" };
         }
@@ -92,6 +105,9 @@ export function PluginPageHostPage({ params, onNavigate, initialPlugin, embedded
       },
       getFileSnapshot: async (fileKey) => {
         const plugin = readyPluginRef.current;
+        if (!serverId) {
+          return { serverInstanceId: "", pluginId, key: fileKey, state: "unavailable", reason: "插件页面没有绑定服务器，无法读取文件快照。" };
+        }
         if (!plugin) {
           return { serverInstanceId: serverId, pluginId, key: fileKey, state: "unavailable", reason: "插件页面上下文尚未就绪。" };
         }
@@ -113,6 +129,9 @@ export function PluginPageHostPage({ params, onNavigate, initialPlugin, embedded
       writeFile: async (fileKey, content, options) => {
         const plugin = readyPluginRef.current;
         const context = hostContextRef.current;
+        if (!serverId) {
+          return { status: "denied", message: "插件页面没有绑定服务器，无法写入文件。" };
+        }
         if (!plugin || !context) {
           return { status: "denied", message: "插件页面上下文尚未就绪。" };
         }