feat(chat): ChatTimeline 导出按钮 + 修复 downloadBlob 文件名丢失(Content-Disposition)

Co-Authored-By: Claude <noreply@anthropic.com>

yunkes/src/api/client.ts

@@ -42,16 +42,17 @@ export function getJson<T>(url: string, params?: Record<string, unknown>): Promi
   return http.get(url, { params }) as unknown as Promise<T>
 }
 
-/** 以 blob 下载（用于 HTML 导出等二进制/文本附件下载）。返回固定文件名（响应拦截器丢失 content-disposition 头）。 */
+/** 以 blob 下载（HTML 导出等附件）。从 Content-Disposition 取文件名（绕开 http 的 (r)=>r.data 解包拦截器）。 */
 export async function downloadBlob(
   url: string,
   params?: Record<string, unknown>,
 ): Promise<string> {
-  const res = await http.get(url, { params, responseType: 'blob' })
-  const blob = res as unknown as Blob
-  // 从响应头取文件名（拦截器只解包 body，需用 raw 拦截；此处 res 已是 blob，header 丢失 → 用固定名）
-  const filename = 'chat-export.html'
-  const objUrl = URL.createObjectURL(blob)
+  // 裸 axios（补 /api 前缀）拿全响应（含 headers），不经 http 拦截器
+  const res = await axios.get(`/api${url}`, { params, responseType: 'blob' })
+  const cd = (res.headers['content-disposition'] as string) || ''
+  const m = /filename="?([^";]+)"?/i.exec(cd)
+  const filename = m ? m[1] : 'chat-export.html'
+  const objUrl = URL.createObjectURL(res.data as Blob)
   const a = document.createElement('a')
   a.href = objUrl
   a.download = filename

yunkes/src/views/ChatTimeline.vue

@@ -4,6 +4,7 @@ import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import { ArrowLeft } from '@element-plus/icons-vue'
 import { getMessages } from '@/api'
+import { downloadBlob } from '@/api/client'
 import type { Channel, Message } from '@/api/types'
 import MessageBubble from '@/components/MessageBubble.vue'
 import ChatSidebar from '@/components/ChatSidebar.vue'
@@ -228,6 +229,23 @@ function onSelectSession(s: {
   }
 }
 
+/** 导出当前会话/时段聊天记录为自包含 HTML（后端渲染气泡 + 附件内联）。 */
+async function exportCurrent(): Promise<void> {
+  if (!hasActive.value) return
+  try {
+    await downloadBlob('/export/chat-html', {
+      channel: channelTyped.value,
+      owner_account_id: props.ownerId,
+      talker_id: isGroup.value ? undefined : props.talkerId,
+      room_id: isGroup.value ? props.roomId : undefined,
+      start: winStart.value,
+      end: winEnd.value,
+    })
+  } catch (e) {
+    ElMessage.error(`导出失败：${(e as Error).message}`)
+  }
+}
+
 // All-fields drawer state for the message detail view.
 const drawerOpen = ref(false)
 const drawerMessage = ref<Message | null>(null)
@@ -297,6 +315,7 @@ onMounted(loadInitial)
               clearable
               style="width: 200px"
             />
+            <el-button v-if="hasActive" size="small" type="primary" plain @click="exportCurrent">导出</el-button>
           </div>
         </div>