feat: 添加万川AI平台对接功能

- 新增万川AI平台API接口层，支持登录、获取知识库列表、上传文件等操作
- 实现万川平台配置界面，支持平台地址、账号密码配置和知识库绑定
- 在知识库页面添加上传功能，支持单个或批量上传售后报告到万川知识库
- 提供检查配置的工具脚本便于调试

chatlab-web/frontend/src/pages/TopicsPage.jsx

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
-import { Plus, Trash2, Sparkles, RefreshCw, ChevronRight, Loader, Settings2, X, Download } from 'lucide-react'
+import { Plus, Trash2, Sparkles, RefreshCw, ChevronRight, Loader, Settings2, X, Download, Upload } from 'lucide-react'
 import dayjs from 'dayjs'
 import {
   getGroups,
@@ -22,6 +22,7 @@ import {
 import MessageBubble from '../components/MessageBubble'
 import ReportDocumentView from '../components/ReportDocumentView'
 import { exportWordDoc } from '../utils/wordExport'
+import { uploadToKnowledgeBase, getWanchuanKnowledgeBases } from '../api/wanchuan'
 
 const TYPE_MAP = {
   1: 0,
@@ -139,6 +140,8 @@ export default function TopicsPage({ sessions = [], onToast }) {
   const [groupPromptDraft, setGroupPromptDraft] = useState('')
   const [savingGroupPrompt, setSavingGroupPrompt] = useState(false)
 
+
+  const [uploadingToKb, setUploadingToKb] = useState(false)
   const loadGroups = useCallback(async () => {
     try {
       const data = await getGroups()
@@ -550,6 +553,7 @@ export default function TopicsPage({ sessions = [], onToast }) {
 
   const handleSummarize = async () => {
     if (!selectedTopic) return
+    if (uploadingToKb) return
     setSummarizing(true)
     setSummarizeProgress(null)
     try {
@@ -566,7 +570,9 @@ export default function TopicsPage({ sessions = [], onToast }) {
       }
 
       let tries = 0
+      let handled = false
       const poll = setInterval(async () => {
+        if (handled) return
         tries += 1
         try {
           const task = await getTask(taskId)
@@ -578,14 +584,26 @@ export default function TopicsPage({ sessions = [], onToast }) {
             // Ignore malformed progress payloads.
           }
           if (taskData.status === 'done') {
+            handled = true
             clearInterval(poll)
-            setSummarizeProgress(null)
-            setSummarizing(false)
             handleSelectTopic(selectedTopic)
             onToast?.('AI 报告生成完成')
+            // 报告生成成功后，如果已绑定知识库则自动上传
+            try {
+              const freshDetail = await getTopic(selectedTopic.id)
+              const reportContent = freshDetail?.knowledge_doc?.content
+              if (reportContent) {
+                await uploadToKnowledgeBaseIfBound(selectedTopic.title, reportContent)
+              }
+            } catch {
+              // 获取报告详情失败不影响主流程
+            }
+            setSummarizeProgress(null)
+            setSummarizing(false)
             return
           }
           if (taskData.status === 'error') {
+            handled = true
             clearInterval(poll)
             setSummarizeProgress(null)
             setSummarizing(false)
@@ -594,6 +612,7 @@ export default function TopicsPage({ sessions = [], onToast }) {
             return
           }
           if (tries > 60) {
+            handled = true
             clearInterval(poll)
             setSummarizeProgress(null)
             setSummarizing(false)
@@ -602,6 +621,7 @@ export default function TopicsPage({ sessions = [], onToast }) {
           }
         } catch (e) {
           if (tries > 60) {
+            handled = true
             clearInterval(poll)
             setSummarizeProgress(null)
             setSummarizing(false)
@@ -631,6 +651,37 @@ export default function TopicsPage({ sessions = [], onToast }) {
     }
   }
 
+  // 上传报告到已绑定的万川知识库
+  const uploadToKnowledgeBaseIfBound = async (reportTitle, content) => {
+    if (uploadingToKb) return
+    setUploadingToKb(true)
+    try {
+      const raw = localStorage.getItem('chatlab_wanchuan_config')
+      if (!raw) return
+      const bound = JSON.parse(raw)
+      const kbInfo = bound?.selectedKbInfo
+      // 上传接口必须使用 datasetId。selectedKbId 现已统一存为 datasetId，
+      // selectedKbInfo.kbDatasetId 为冗余备份，两者任一可用。
+      const datasetId = kbInfo?.kbDatasetId || bound?.selectedKbId
+      if (!bound?.platformUrl || !datasetId) return
+
+      const safeTitle = (reportTitle || 'report').replace(/[^a-zA-Z0-9\u4e00-\u9fa5_-]/g, '_').slice(0, 50)
+      // 上传接口必须使用 datasetId，而不是知识库对象的 id
+      console.log('[上传KB] datasetId:', datasetId, 'kbName:', kbInfo?.kbName || 'N/A')
+      const blob = new Blob([content], { type: 'text/markdown;charset=utf-8' })
+      const file = new File([blob], `${safeTitle}.md`, { type: 'text/markdown' })
+
+      // 上传接口使用 datasetId
+      await uploadToKnowledgeBase(bound.platformUrl, datasetId, file)
+      onToast?.('报告已同步上传到知识库')
+    } catch (e) {
+      console.error('[上传知识库失败]', e?.message || e)
+      onToast?.(`报告生成成功，但上传到知识库失败: ${e.message}`, 'error')
+    } finally {
+      setUploadingToKb(false)
+    }
+  }
+
   const selectedInitState = selectedGroup ? initStateByGroup[selectedGroup.id] : null
   const analyzing = selectedInitState?.status === 'running'