feat(knowledge): 添加知识管理功能模块

- 实现知识集的创建、编辑、删除功能
- 实现知识条目的创建、编辑、删除功能
- 添加知识集详情页面展示功能
- 实现知识条目导入数据集文件功能
- 添加知识管理主页列表展示功能
- 实现知识集和知识条目的状态管理
- 集成标签管理和搜索过滤功能
- 添加知识条目的批量操作支持

frontend/src/pages/KnowledgeManagement/components/ImportKnowledgeItemsDialog.tsx

@@ -0,0 +1,97 @@
+import { useState } from "react";
+import { Button, Form, Modal, message, Select } from "antd";
+import { PlusOutlined } from "@ant-design/icons";
+import DatasetFileTransfer from "@/components/business/DatasetFileTransfer";
+import { Dataset, DatasetFile } from "@/pages/DataManagement/dataset.model";
+import {
+  importKnowledgeItemsUsingPost,
+} from "../knowledge-management.api";
+import { knowledgeStatusOptions } from "../knowledge-management.const";
+import { KnowledgeStatusType } from "../knowledge-management.model";
+
+export default function ImportKnowledgeItemsDialog({
+  setId,
+  onImported,
+  disabled,
+}: {
+  setId: string;
+  onImported: () => void;
+  disabled?: boolean;
+}) {
+  const [open, setOpen] = useState(false);
+  const [form] = Form.useForm();
+  const [selectedFilesMap, setSelectedFilesMap] = useState<Record<string, DatasetFile>>({});
+  const [selectedDataset, setSelectedDataset] = useState<Dataset | null>(null);
+
+  const handleSubmit = async () => {
+    if (!selectedDataset) {
+      message.warning("请先选择数据集");
+      return;
+    }
+    const fileIds = Object.keys(selectedFilesMap);
+    if (fileIds.length === 0) {
+      message.warning("请至少选择一个文件");
+      return;
+    }
+
+    const values = await form.validateFields();
+
+    try {
+      await importKnowledgeItemsUsingPost(setId, {
+        datasetId: selectedDataset.id,
+        fileIds,
+        status: values.status || undefined,
+      });
+      message.success("导入成功");
+      setOpen(false);
+      setSelectedFilesMap({});
+      setSelectedDataset(null);
+      form.resetFields();
+      onImported();
+    } catch {
+      message.error("导入失败，请重试");
+    }
+  };
+
+  return (
+    <>
+      <Button
+        icon={<PlusOutlined />}
+        onClick={() => {
+          form.resetFields();
+          form.setFieldsValue({ status: KnowledgeStatusType.DRAFT });
+          setOpen(true);
+        }}
+        disabled={disabled}
+      >
+        导入数据集文件
+      </Button>
+      <Modal
+        title="导入数据集文件"
+        open={open}
+        onCancel={() => {
+          setOpen(false);
+          setSelectedFilesMap({});
+          setSelectedDataset(null);
+        }}
+        onOk={handleSubmit}
+        okText="确定"
+        cancelText="取消"
+        width={1000}
+        maskClosable={false}
+      >
+        <Form form={form} layout="vertical">
+          <Form.Item label="条目状态" name="status">
+            <Select options={knowledgeStatusOptions} />
+          </Form.Item>
+        </Form>
+        <DatasetFileTransfer
+          open={open}
+          selectedFilesMap={selectedFilesMap}
+          onSelectedFilesChange={setSelectedFilesMap}
+          onDatasetSelect={setSelectedDataset}
+        />
+      </Modal>
+    </>
+  );
+}