refactor(knowledge): separate file upload into independent entry point

将知识库的"新建文章"和"上传文件"拆分为两个独立入口：

UI 改动：
- 移除 Segmented 切换器，"新建文章"弹窗恢复为纯手动输入
- 新增独立的"上传文件"按钮 + 上传弹窗（Upload.Dragger）
- 上传提取完成后自动打开"确认提取内容"弹窗，预填标题+内容
- 管理员编辑确认后保存，文章来源标记为 EXTRACT

后端改动：
- CreateArticleDto 新增可选 source 字段
- Controller 使用 dto.source || MANUAL（不再硬编码 MANUAL）

流程：
- 新建文章 → 手动输入 → source = MANUAL
- 上传文件 → 提取文本 → 编辑确认 → source = EXTRACT

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/admin-client/src/features/knowledge/infrastructure/knowledge.api.ts

@@ -24,6 +24,7 @@ export interface CreateArticleParams {
   content: string;
   category: string;
   tags?: string[];
+  source?: string;
 }
 
 export interface ExtractedTextResponse {

packages/admin-client/src/features/knowledge/presentation/pages/KnowledgePage.tsx

@@ -13,7 +13,6 @@ import {
   Typography,
   Drawer,
   Upload,
-  Segmented,
   message,
 } from 'antd';
 import {
@@ -55,10 +54,11 @@ export function KnowledgePage() {
   const [searchText, setSearchText] = useState('');
   const [categoryFilter, setCategoryFilter] = useState<string>();
   const [isModalOpen, setIsModalOpen] = useState(false);
+  const [isUploadModalOpen, setIsUploadModalOpen] = useState(false);
   const [isDrawerOpen, setIsDrawerOpen] = useState(false);
   const [selectedArticle, setSelectedArticle] = useState<Article | null>(null);
-  const [inputMode, setInputMode] = useState<'manual' | 'upload'>('manual');
   const [isExtracting, setIsExtracting] = useState(false);
+  const [articleSource, setArticleSource] = useState<'MANUAL' | 'EXTRACT'>('MANUAL');
   const [form] = Form.useForm();
 
   const { data, isLoading } = useKnowledgeArticles(categoryFilter);
@@ -98,10 +98,11 @@ export function KnowledgePage() {
         }
       );
     } else {
-      createMutation.mutate(values, {
+      createMutation.mutate({ ...values, source: articleSource }, {
         onSuccess: () => {
           setIsModalOpen(false);
           form.resetFields();
+          setArticleSource('MANUAL');
         },
       });
     }
@@ -111,19 +112,24 @@ export function KnowledgePage() {
     setIsExtracting(true);
     uploadMutation.mutate(file, {
       onSuccess: (result) => {
+        // 关闭上传弹窗，打开文章编辑弹窗（预填提取内容）
+        setIsUploadModalOpen(false);
+        setSelectedArticle(null);
+        setArticleSource('EXTRACT');
+        form.resetFields();
         form.setFieldsValue({
           title: result.suggestedTitle,
           content: result.extractedText,
         });
+        setIsModalOpen(true);
         const info = result.pageCount
-          ? `已提取 ${result.wordCount} 字（${result.pageCount} 页）`
+          ? `已提取 ${result.wordCount} 字（${result.pageCount} 页），请编辑后保存`
-          : `已提取 ${result.wordCount} 字`;
+          : `已提取 ${result.wordCount} 字，请编辑后保存`;
         message.success(info);
-        setInputMode('manual');
       },
       onSettled: () => setIsExtracting(false),
     });
-    return false; // prevent default upload
+    return false;
   };
 
   const columns = [
@@ -256,18 +262,26 @@ export function KnowledgePage() {
               options={CATEGORIES}
             />
           </Space>
-          <Button
+          <Space>
-            type="primary"
+            <Button
-            icon={<PlusOutlined />}
+              icon={<UploadOutlined />}
-            onClick={() => {
+              onClick={() => setIsUploadModalOpen(true)}
-              setSelectedArticle(null);
+            >
-              form.resetFields();
+              上传文件
-              setInputMode('manual');
+            </Button>
-              setIsModalOpen(true);
+            <Button
-            }}
+              type="primary"
-          >
+              icon={<PlusOutlined />}
-            新建文章
+              onClick={() => {
-          </Button>
+                setSelectedArticle(null);
+                setArticleSource('MANUAL');
+                form.resetFields();
+                setIsModalOpen(true);
+              }}
+            >
+              新建文章
+            </Button>
+          </Space>
         </div>
 
         <Table
@@ -283,13 +297,48 @@ export function KnowledgePage() {
         />
       </Card>
 
+      {/* 上传文件弹窗 */}
+      <Modal
+        title="上传文件"
+        open={isUploadModalOpen}
+        onCancel={() => {
+          if (!isExtracting) setIsUploadModalOpen(false);
+        }}
+        footer={null}
+        width={520}
+      >
+        <Upload.Dragger
+          accept=".pdf,.docx,.txt,.md"
+          showUploadList={false}
+          beforeUpload={handleFileUpload}
+          disabled={isExtracting}
+        >
+          <p className="ant-upload-drag-icon">
+            <InboxOutlined />
+          </p>
+          <p className="ant-upload-text">
+            {isExtracting ? '正在提取文本...' : '点击或拖拽文件到此区域'}
+          </p>
+          <p className="ant-upload-hint">
+            支持 PDF、Word(.docx)、TXT、Markdown 格式，最大 200MB
+          </p>
+        </Upload.Dragger>
+      </Modal>
+
       {/* 编辑/新建弹窗 */}
       <Modal
-        title={selectedArticle ? '编辑文章' : '新建文章'}
+        title={
+          selectedArticle
+            ? '编辑文章'
+            : articleSource === 'EXTRACT'
+            ? '确认提取内容'
+            : '新建文章'
+        }
         open={isModalOpen}
         onCancel={() => {
           setIsModalOpen(false);
           setSelectedArticle(null);
+          setArticleSource('MANUAL');
           form.resetFields();
         }}
         footer={null}
@@ -316,47 +365,13 @@ export function KnowledgePage() {
             <Select mode="tags" placeholder="输入标签后回车" />
           </Form.Item>
 
-          {!selectedArticle && (
+          <Form.Item
-            <Form.Item label="内容来源">
+            name="content"
-              <Segmented
+            label="内容"
-                value={inputMode}
+            rules={[{ required: true, message: '请输入内容' }]}
-                onChange={(val) => setInputMode(val as 'manual' | 'upload')}
+          >
-                options={[
+            <TextArea rows={12} placeholder="支持Markdown格式" />
-                  { label: '手动输入', value: 'manual', icon: <EditOutlined /> },
+          </Form.Item>
-                  { label: '文件上传', value: 'upload', icon: <UploadOutlined /> },
-                ]}
-              />
-            </Form.Item>
-          )}
-
-          {inputMode === 'upload' && !selectedArticle ? (
-            <Form.Item label="上传文件">
-              <Upload.Dragger
-                accept=".pdf,.docx,.txt,.md"
-                showUploadList={false}
-                beforeUpload={handleFileUpload}
-                disabled={isExtracting}
-              >
-                <p className="ant-upload-drag-icon">
-                  <InboxOutlined />
-                </p>
-                <p className="ant-upload-text">
-                  {isExtracting ? '正在提取文本...' : '点击或拖拽文件到此区域'}
-                </p>
-                <p className="ant-upload-hint">
-                  支持 PDF、Word(.docx)、TXT、Markdown 格式，最大 200MB
-                </p>
-              </Upload.Dragger>
-            </Form.Item>
-          ) : (
-            <Form.Item
-              name="content"
-              label="内容"
-              rules={[{ required: true, message: '请输入内容' }]}
-            >
-              <TextArea rows={12} placeholder="支持Markdown格式" />
-            </Form.Item>
-          )}
 
           <Form.Item className="mb-0 text-right">
             <Space>

packages/services/knowledge-service/src/adapters/inbound/knowledge.controller.ts

@@ -44,7 +44,7 @@ export class KnowledgeController {
   async createArticle(@Body() dto: CreateArticleDto) {
     const article = await this.knowledgeService.createArticle({
       ...dto,
-      source: KnowledgeSource.MANUAL,
+      source: dto.source || KnowledgeSource.MANUAL,
     });
     return {
       success: true,

packages/services/knowledge-service/src/application/dtos/knowledge.dto.ts

@@ -5,6 +5,7 @@ export class CreateArticleDto {
   content: string;
   category: string;
   tags?: string[];
+  source?: KnowledgeSource;
   sourceUrl?: string;
   autoPublish?: boolean;
 }