fix: 清理前端异步请求生命周期

- 页面卸载和弹窗关闭时终止 SSE

- 为版本检查增加超时、中止与重复请求保护

easyflow-ui-admin/app/src/components/chat/chat.vue

@@ -578,6 +578,9 @@ watch(
   { flush: 'post' },
 );
 onBeforeUnmount(() => {
+  if (sending.value) {
+    stopSse();
+  }
   if (bubbleListScrollElement.value) {
     bubbleListScrollElement.value.removeEventListener(
       'scroll',

easyflow-ui-admin/app/src/views/ai/bots/pages/setting/PromptChoreChatModal.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref } from 'vue';
+import { onBeforeUnmount, ref, watch } from 'vue';
 
 import { EasyFlowPanelModal } from '@easyflow/common-ui';
 import { $t } from '@easyflow/locales';
@@ -18,6 +18,16 @@ const rules = {
 };
 const loading = ref(false);
 
+const stopStreaming = () => {
+  if (!loading.value) return;
+  sseClient.abort();
+  loading.value = false;
+};
+
+const closeDialog = () => {
+  dialogVisible.value = false;
+};
+
 const handleSubmit = async () => {
   loading.value = true;
   const data = {
@@ -40,12 +50,28 @@ const handleSubmit = async () => {
       const delta = sseData.payload?.delta;
       formData.value.prompt += delta;
     },
+    onError(error) {
+      loading.value = false;
+      console.error('提示词优化流式请求失败', error);
+    },
+    onFinished() {
+      loading.value = false;
+    },
   });
 };
 const handleReplace = () => {
   emit('success', formData.value.prompt);
-  dialogVisible.value = false;
+  closeDialog();
 };
+
+watch(dialogVisible, (visible) => {
+  if (!visible) {
+    stopStreaming();
+  }
+});
+
+onBeforeUnmount(stopStreaming);
+
 defineExpose({
   open(botId: string, systemPrompt: string) {
     formData.value = {
@@ -80,7 +106,7 @@ defineExpose({
     </ElForm>
 
     <template #footer>
-      <ElButton @click="dialogVisible = false">
+      <ElButton @click="closeDialog">
         {{ $t('button.cancel') }}
       </ElButton>
       <ElButton type="primary" @click="handleReplace" v-if="!loading">

easyflow-ui-admin/app/src/views/ai/chat/index.vue

@@ -351,6 +351,9 @@ watch(
 );
 
 onBeforeUnmount(() => {
+  if (sending.value || activeStreamSessionId.value) {
+    abortActiveStream();
+  }
   window.removeEventListener('click', closeSessionContextMenu);
   window.removeEventListener('resize', closeSessionContextMenu);
   window.removeEventListener('scroll', closeSessionContextMenu, true);