feat:导出功能重构

frontend/src/stores/modules/agents.ts

@@ -336,8 +336,10 @@ export const useAgentsStore = defineStore('agents', () => {
   )
   // 监听 configStore.config.agentRepository.storageVersionIdentifier 改变
   watch(
-    () => configStore.config.agentRepository.storageVersionIdentifier,
+    () => configStore.config.agentRepository?.storageVersionIdentifier,
     (value) => {
+      // 跳过无效值
+      if (!value) return
       // value与storageVersionIdentifier不一致清除所有storageKey开头的localStorage
       if (value !== storageVersionIdentifier.value) {
         clearStorageByVersion()

frontend/src/stores/modules/config.ts

@@ -28,7 +28,7 @@ export const useConfigStore = defineStore('config', () => {
     const data = await readConfig<Config>('config.json')
     config.value = {
       ...defaultConfig,
-      ...data
+      ...(data || {})
     }
   }