feat(agent): 添加 token 定时刷新功能并优化代理图像显示- 在 workflow 组件中添加定时器，每 5 分钟刷新一次 token

- 优化智能代理卡片的图像显示，支持多种格式
- 新增 getAccessToken API调用

src/views/agent/views/workflow/index.vue

@@ -1,6 +1,11 @@
 <script>
 import { DIFY_URL } from '@/config/base-url'
-import { agentAdd, agentDetail, agentEdit } from '@/api/intelligent-agent/list'
+import {
+  agentAdd,
+  agentDetail,
+  agentEdit,
+  getAccessToken
+} from '@/api/intelligent-agent/list'
 export default {
   name: 'workflow',
   props: {
@@ -11,6 +16,7 @@ export default {
   },
   data() {
     return {
+      timer: null,
       agentDetail: {},
 
       resetName: '',
@@ -76,6 +82,15 @@ export default {
     this.worker.instance.postMessage('init-worker', [
       this.messageChannel.instance.port2
     ])
+    // 每 5 分钟执行一次
+    // ✅ 先清理已有 timer，防止重复创建
+    if (this.timer) {
+      clearInterval(this.timer)
+      this.timer = null
+    }
+    this.timer = setInterval(() => {
+      this.initTokenRefresh()
+    }, 1000 * 60 * 5)
   },
   destroyed() {
     //  组件销毁时清除 web worker 和 messageChannel
@@ -83,6 +98,10 @@ export default {
     this.worker.instance = void 0
     this.messageChannel.instance.port1.close()
     this.messageChannel.instance = void 0
+    if (this.timer) {
+      clearInterval(this.timer)
+      this.timer = null
+    }
   },
   watch: {
     '$route.query': {
@@ -108,6 +127,21 @@ export default {
     }
   },
   methods: {
+    async initTokenRefresh() {
+      try {
+        const thirdContent = await getAccessToken()
+        const { refreshToken, accessToken } = thirdContent.content.content
+
+        if (localStorage.getItem('refresh_token') !== refreshToken) {
+          localStorage.setItem('refresh_token', refreshToken)
+        }
+        if (localStorage.getItem('console_token') !== accessToken) {
+          localStorage.setItem('console_token', accessToken)
+        }
+      } catch (error) {
+        console.error('Token refresh failed:', error)
+      }
+    },
     handleAgentLoad() {
       // 把 messageChannel port1 的所有权传递给 iframe
       this.$refs.agent.contentWindow.postMessage('init-iframe', '*', [

src/views/intelligent-agent/components/info/index.vue

@@ -236,15 +236,20 @@ export default {
                 {{ dialog.agent.image }}
               </div>
               <div
-                v-else
+                v-else-if="dialog.agent.imageType === 'image'"
                 style="width: 100%;height: 100%;overflow: hidden;border-radius: 8px"
               >
                 <img
+                  v-if="dialog.agent.image"
                   :src="dialog.agent.image"
                   alt=""
                   style="width: 100%;height: 100%"
                 />
               </div>
+
+              <div v-else style="font-size: 30px" class=" fw600 white">
+                {{ dialog.agent.appName[0] }}
+              </div>
             </div>
           </el-popover>
         </el-form-item>