feat(KnowledgeManagement): 保留知识集原始字段信息

- 在更新标签时保持知识集的名称、描述、状态等核心属性
- 保留领域、业务线、负责人等元数据信息
- 维护有效期、敏感度等配置项
- 确保源类型和自定义元数据字段不被覆盖
- 防止更新标签操作意外丢失其他重要字段值

frontend/src/pages/KnowledgeManagement/Detail/KnowledgeSetDetail.tsx

@@ -28,7 +28,12 @@ import {
   queryKnowledgeItemsUsingGet,
   queryKnowledgeItemPreviewStatusUsingGet,
   queryKnowledgeSetByIdUsingGet,
+  updateKnowledgeSetByIdUsingPut,
 } from "../knowledge-management.api";
+import {
+  createDatasetTagUsingPost,
+  queryDatasetTagsUsingGet,
+} from "../../DataManagement/dataset.api";
 import {
   knowledgeContentTypeOptions,
   knowledgeSourceTypeOptions,
@@ -48,7 +53,7 @@ import CreateKnowledgeSet from "../components/CreateKnowledgeSet";
 import KnowledgeItemEditor from "../components/KnowledgeItemEditor";
 import ImportKnowledgeItemsDialog from "../components/ImportKnowledgeItemsDialog";
 import { formatDate } from "@/utils/unit";
-import { File, Folder } from "lucide-react";
+import { File, Folder, Clock } from "lucide-react";
 import {
   PREVIEW_TEXT_MAX_LENGTH,
   resolvePreviewFileType,
@@ -527,14 +532,12 @@ const KnowledgeSetDetail = () => {
     () => [
       {
         key: "items",
-        icon: <PlusOutlined className="text-blue-500" />,
-        label: "条目数",
+        icon: <File className="text-blue-400 w-4 h-4" />,
         value: allItems.length,
       },
       {
         key: "updated",
-        icon: <EditOutlined className="text-gray-500" />,
-        label: "更新时间",
+        icon: <Clock className="text-blue-400 w-4 h-4" />,
         value: knowledgeSet?.updatedAt ? formatDate(knowledgeSet.updatedAt) : "-",
       },
     ],
@@ -916,6 +919,60 @@ const KnowledgeSetDetail = () => {
             },
           },
         ]}
+        tagConfig={{
+          showAdd: true,
+          tags: (knowledgeSet?.tags || []) as any,
+          onFetchTags: async () => {
+            const res = await queryDatasetTagsUsingGet({
+              page: 0,
+              pageSize: 1000,
+            });
+            return res.data || [];
+          },
+          onCreateAndTag: async (tagName) => {
+            const res = await createDatasetTagUsingPost({ name: tagName });
+            if (res.data && knowledgeSet) {
+              const currentTags = knowledgeSet.tags || [];
+              await updateKnowledgeSetByIdUsingPut(knowledgeSet.id, {
+                name: knowledgeSet.name,
+                description: knowledgeSet.description,
+                status: knowledgeSet.status,
+                domain: knowledgeSet.domain,
+                businessLine: knowledgeSet.businessLine,
+                owner: knowledgeSet.owner,
+                validFrom: knowledgeSet.validFrom,
+                validTo: knowledgeSet.validTo,
+                sourceType: knowledgeSet.sourceType,
+                sensitivity: knowledgeSet.sensitivity,
+                metadata: knowledgeSet.metadata,
+                tags: [...currentTags.map((tag) => tag.name), res.data.name],
+              });
+              fetchKnowledgeSet();
+            }
+          },
+          onAddTag: async (tag: any) => {
+            if (knowledgeSet) {
+              const currentTags = knowledgeSet.tags || [];
+              const newTagName = typeof tag === "string" ? tag : tag?.name;
+              if (!newTagName) return;
+              await updateKnowledgeSetByIdUsingPut(knowledgeSet.id, {
+                name: knowledgeSet.name,
+                description: knowledgeSet.description,
+                status: knowledgeSet.status,
+                domain: knowledgeSet.domain,
+                businessLine: knowledgeSet.businessLine,
+                owner: knowledgeSet.owner,
+                validFrom: knowledgeSet.validFrom,
+                validTo: knowledgeSet.validTo,
+                sourceType: knowledgeSet.sourceType,
+                sensitivity: knowledgeSet.sensitivity,
+                metadata: knowledgeSet.metadata,
+                tags: [...currentTags.map((tag) => tag.name), newTagName],
+              });
+              fetchKnowledgeSet();
+            }
+          },
+        }}
       />
 
         <CreateKnowledgeSet