refactor(api): 优化知识库文档ID及性别展示逻辑

- 将 KbDocumentVO 中 id 类型改为字符串，docId 设为可选字段
- 调整知识库视图中删除、重新索引和查看文档块接口调用，全部使用 id 代替 docId
- 修正用户列表中性别标签显示，增加“未知”类型，完善性别类型与标签对应关系

src/api/ai-chat.ts

@@ -49,8 +49,8 @@ export interface ChatMessageVO {
 
 /** 知识库文档 */
 export interface KbDocumentVO {
-  id: number;
-  docId: string; // UUID格式
+  id: string; // UUID格式
+  docId?: string; // 可能为空
   title: string;
   docType: string; // report/document/text/data/other
   fileType: string; // pdf/doc/txt/md等

src/views/knowledge-base/index.vue

@@ -182,7 +182,7 @@ async function handleDelete(doc: KbDocumentVO) {
       }
     );
 
-    const res = await deleteDocument(doc.docId);
+    const res = await deleteDocument(doc.id);
     if (res.code === 200) {
       ElMessage.success("删除成功");
       loadDocuments();
@@ -197,7 +197,7 @@ async function handleDelete(doc: KbDocumentVO) {
 // 重新索引文档
 async function handleReindex(doc: KbDocumentVO) {
   try {
-    const res = await reindexDocument(doc.docId);
+    const res = await reindexDocument(doc.id);
     if (res.code === 200) {
       ElMessage.success("重新索引已启动");
       loadDocuments();
@@ -216,7 +216,7 @@ async function handleViewChunks(doc: KbDocumentVO) {
   selectedChunk.value = null;
 
   try {
-    const res = await getDocumentChunks(doc.docId);
+    const res = await getDocumentChunks(doc.id);
     if (res.code === 200) {
       currentDocChunks.value = res.data || [];
     }

src/views/system/user/utils/hook.tsx

@@ -96,10 +96,12 @@ export function useUser(tableRef: Ref) {
       cellRenderer: ({ row, props }) => (
         <el-tag
           size={props.size}
-          type={row.gender === 2 ? "danger" : null}
+          type={
+            row.gender === 0 ? "info" : row.gender === 1 ? "success" : "danger"
+          }
           effect="plain"
         >
-          {row.gender === 1 ? "男" : "女"}
+          {row.gender === 0 ? "未知" : row.gender === 1 ? "男" : "女"}
         </el-tag>
       )
     },