feat(doc): 文档列表目录树默认收起并移除标签筛选

- 目录树去除 expand-all，初始仅显示分类、子目录折叠，点击展开
- 移除工具栏「全部标签」下拉及其数据源链路：filterTag/tagOptions、
  api 的 listDocuments tag 参数与 getTagList、store 的 tags/loadTags、
  路由守卫预加载
- 后端删除 /document/list 的 tag 参数过滤与 /tag/list 聚合接口
  （getTagList 实现一并移除）
- 文档自带 tags 属性、行内/详情展示、向量 metadata 均保留不变

frontend/src/api/document.ts

@@ -12,13 +12,12 @@ function authHeaders(): Record<string, string> {
 // ==================== 文档 CRUD ====================
 
 /** 文档列表（分页 + 过滤 + 搜索） */
-export function listDocuments(page = 1, size = 10, categoryId?: string, status?: string, keyword?: string, tag?: string, folderId?: string, sortField?: string, sortOrder?: string): Promise<ApiResponse> {
+export function listDocuments(page = 1, size = 10, categoryId?: string, status?: string, keyword?: string, folderId?: string, sortField?: string, sortOrder?: string): Promise<ApiResponse> {
   let path = `/document/list?page=${page}&size=${size}`
   if (categoryId) path += `&categoryId=${categoryId}`
   if (folderId != null) path += `&folderId=${folderId}`
   if (status) path += `&status=${status}`
   if (keyword) path += `&keyword=${encodeURIComponent(keyword)}`
-  if (tag) path += `&tag=${encodeURIComponent(tag)}`
   if (sortField) path += `&sortField=${sortField}`
   if (sortOrder) path += `&sortOrder=${sortOrder}`
   return request.get(path).then(r => r.data)
@@ -128,10 +127,3 @@ export function searchDocuments(query: string, topK?: number, similarityThreshol
 export function getStats(): Promise<ApiResponse> {
   return request.get('/document/stats').then(r => r.data)
 }
-
-// ==================== 标签 ====================
-
-/** 获取标签列表 */
-export function getTagList(): Promise<ApiResponse> {
-  return request.get('/tag/list').then(r => r.data)
-}

frontend/src/router/index.ts

@@ -62,7 +62,6 @@ router.beforeEach(async (to, _from, next) => {
         await Promise.all([
           categoryStore.loadCategories(),
           documentStore.loadStats(),
-          documentStore.loadTags(),
         ])
       } catch { /* 预加载失败不阻塞导航 */ }
       break

frontend/src/stores/document.ts

@@ -1,13 +1,12 @@
 /**
- * 文档状态管理 —— 替代旧 store.js 中 stats / tags 部分
+ * 文档状态管理 —— 替代旧 store.js 中 stats 部分
  */
 import { defineStore } from 'pinia'
 import { ref } from 'vue'
-import { getStats, getTagList } from '@/api/document'
+import { getStats } from '@/api/document'
 
 export const useDocumentStore = defineStore('document', () => {
   const stats = ref<any>(null)
-  const tags = ref<any[]>([])
 
   async function loadStats(): Promise<void> {
     try {
@@ -16,12 +15,5 @@ export const useDocumentStore = defineStore('document', () => {
     } catch (e) { console.error('加载统计失败', e) }
   }
 
-  async function loadTags(): Promise<void> {
-    try {
-      const res = await getTagList()
-      if (res.success) tags.value = res.data || []
-    } catch (e) { console.error('加载标签列表失败', e) }
-  }
-
-  return { stats, tags, loadStats, loadTags }
+  return { stats, loadStats }
 })

frontend/src/views/DocList.vue

@@ -15,7 +15,6 @@
             :activable="true"
             :active-multiple="false"
             hover
-            expand-all
             empty="暂无分类与目录"
             v-model:actived="activedKeys"
             @active="onTreeActive"
@@ -44,7 +43,6 @@
           <t-input v-model="keyword" placeholder="搜索文档标题或文件名..." clearable @change="debouncedLoad" style="max-width:260px;" size="small" />
           <t-select v-model="filterCategory" :options="categoryOptions" placeholder="全部分类" clearable size="small" style="width:140px;" @change="onCategoryChange" />
           <t-select v-model="filterStatus" :options="statusOptions" placeholder="全部状态" clearable size="small" style="width:110px;" @change="load()" />
-          <t-select v-model="filterTag" :options="tagOptions" placeholder="全部标签" clearable size="small" style="width:140px;" @change="load()" />
           <t-button variant="outline" size="small" @click="load()">刷新</t-button>
           <t-tag v-if="hasProcessing" theme="warning" size="small">⏳ 有文档处理中...</t-tag>
           <t-tag v-if="filterFolder" theme="primary" variant="light" size="small" :closable="true" @close="clearFolderFilter">📁 目录筛选</t-tag>
@@ -172,7 +170,6 @@ const loading = ref(false)
 const filterCategory = ref('')
 const filterStatus = ref('')
 const keyword = ref('')
-const filterTag = ref('')
 const selectedIds = ref(new Set<string>())
 const hasProcessing = ref(false)
 
@@ -247,7 +244,6 @@ const columns = [
 // ==================== 选项 ====================
 const categoryOptions = computed(() => [{ label: '全部分类', value: '' }, ...categoryStore.categories.map(c => ({ label: c.name, value: String(c.id) }))])
 const statusOptions = [{ label: '全部状态', value: '' }, { label: '已完成', value: 'READY' }, { label: '处理中', value: 'PROCESSING' }, { label: '失败', value: 'FAILED' }]
-const tagOptions = computed(() => [{ label: '全部标签', value: '' }, ...(documentStore.tags || []).map((t: any) => ({ label: `${t.tag} (${t.count})`, value: t.tag }))])
 // 移动弹窗目录树：确保有「未分类」节点，保留移出到未分类的能力
 const moveTreeData = computed(() => {
   const hasUnclassified = treeData.value.some(n => n.value === 'cat:0')
@@ -519,7 +515,7 @@ async function loadData(p = page.value) {
   page.value = p
   loading.value = true
   try {
-    const json = await listDocuments(p, pageSize.value, filterCategory.value || undefined, filterStatus.value || undefined, keyword.value.trim() || undefined, filterTag.value || undefined, filterFolder.value || undefined, sortInfo.value?.sortBy || undefined, sortInfo.value ? (sortInfo.value.descending ? 'desc' : 'asc') : undefined)
+    const json = await listDocuments(p, pageSize.value, filterCategory.value || undefined, filterStatus.value || undefined, keyword.value.trim() || undefined, filterFolder.value || undefined, sortInfo.value?.sortBy || undefined, sortInfo.value ? (sortInfo.value.descending ? 'desc' : 'asc') : undefined)
     if (json.success) {
       documents.value = (json.data || []).map((d: any) => ({ ...d, _enabled: d.enabled !== false }))
       total.value = json.total || 0

src/main/java/com/wok/supportbot/controller/DocumentController.java

@@ -329,7 +329,7 @@ public class DocumentController {
     }
 
     /**
-     * 查询文档列表（分页 + 过滤 + 关键词搜索 + 标签筛选）
+     * 查询文档列表（分页 + 过滤 + 关键词搜索）
      *
      * @param page       页码（默认1）
      * @param size       每页大小（默认10）
@@ -337,7 +337,6 @@ public class DocumentController {
      * @param folderId   目录ID过滤（可选，0 表示只看根目录）
      * @param status     状态过滤（PROCESSING/READY/FAILED，可选）
      * @param keyword    关键词搜索（模糊匹配标题和文件名，可选）
-     * @param tag        标签筛选（精确匹配，可选）
      * @return 分页文档列表
      */
     @GetMapping("/document/list")
@@ -349,11 +348,10 @@ public class DocumentController {
             @RequestParam(required = false) Long folderId,
             @RequestParam(required = false) String status,
             @RequestParam(required = false) String keyword,
-            @RequestParam(required = false) String tag,
             @RequestParam(required = false) String sortField,
             @RequestParam(required = false) String sortOrder) {
         try {
-            Map<String, Object> result = documentService.listDocuments(page, size, categoryId, folderId, status, keyword, tag, sortField, sortOrder);
+            Map<String, Object> result = documentService.listDocuments(page, size, categoryId, folderId, status, keyword, sortField, sortOrder);
             Map<String, Object> data = new HashMap<>();
             data.put("success", true);
             data.put("data", result.get("records"));
@@ -727,29 +725,6 @@ public class DocumentController {
         return categoryFilter.parse(rawCategoryIds);
     }
 
-    // ==================== 标签管理 ====================
-
-    /**
-     * P1-2.3: 获取标签列表（从所有文档的 tags 聚合去重，含使用次数）
-     */
-    @GetMapping("/tag/list")
-    @PreAuthorize("hasAnyRole('admin','kb_operator')")
-    public ResponseEntity<Map<String, Object>> getTagList() {
-        try {
-            List<Map<String, Object>> tags = documentService.getTagList();
-            return ResponseEntity.ok(Map.of(
-                    "success", true,
-                    "data", tags,
-                    "total", tags.size()
-            ));
-        } catch (Exception e) {
-            return ResponseEntity.status(500).body(Map.of(
-                    "success", false,
-                    "message", "获取标签列表失败：" + e.getMessage()
-            ));
-        }
-    }
-
     // ==================== 分块管理 ====================
 
     /**

src/main/java/com/wok/supportbot/service/DocumentService.java

@@ -457,10 +457,10 @@ public class DocumentService {
     // ==================== 文档管理 ====================
 
     /**
-     * 分页查询文档列表（手动分页，支持关键词搜索 + 标签筛选 + 目录筛选）
+     * 分页查询文档列表（手动分页，支持关键词搜索 + 目录筛选）
      */
     public Map<String, Object> listDocuments(int page, int size, Long categoryId, Long folderId, String status,
-                                             String keyword, String tag, String sortField, String sortOrder) {
+                                             String keyword, String sortField, String sortOrder) {
         // 参数安全校验
         if (page < 1) page = 1;
         if (size < 1 || size > 100) size = 10;
@@ -482,16 +482,6 @@ public class DocumentService {
         if (kw != null) {
             countWrapper.and(w -> w.like("title", kw).or().like("source_name", kw));
         }
-        // P1-2.3: 标签筛选（JSONB 包含查询，使用 ObjectMapper 构建合法 JSON）
-        if (tag != null && !tag.trim().isEmpty()) {
-            try {
-                ObjectMapper om = new ObjectMapper();
-                String jsonArray = om.writeValueAsString(List.of(tag.trim()));
-                countWrapper.apply("tags->'tags' @> {0}::jsonb", jsonArray);
-            } catch (Exception e) {
-                log.warn("构建标签筛选 JSON 失败: tag={}", tag, e);
-            }
-        }
 
         // 先查询总数（不加 ORDER BY）
         Long total = documentMapper.selectCount(countWrapper);
@@ -510,15 +500,6 @@ public class DocumentService {
         if (kw != null) {
             listWrapper.and(w -> w.like("title", kw).or().like("source_name", kw));
         }
-        if (tag != null && !tag.trim().isEmpty()) {
-            try {
-                ObjectMapper om = new ObjectMapper();
-                String jsonArray = om.writeValueAsString(List.of(tag.trim()));
-                listWrapper.apply("tags->'tags' @> {0}::jsonb", jsonArray);
-            } catch (Exception e) {
-                log.warn("构建标签筛选 JSON 失败: tag={}", tag, e);
-            }
-        }
         // 排序字段白名单（前端 colKey -> 数据库列名），防 SQL 注入
         Map<String, String> sortColumns = Map.of(
                 "title", "title",
@@ -867,26 +848,6 @@ public class DocumentService {
         }
     }
 
-    // ==================== 标签管理 ====================
-
-    /**
-     * P1-2.3: 获取标签列表（从所有文档的 tags JSONB 聚合去重，含使用次数）
-     *
-     * @return [{tag: "标签名", count: 使用次数}]
-     */
-    public List<Map<String, Object>> getTagList() {
-        String sql = "SELECT tag_value AS tag, COUNT(*) AS count " +
-                "FROM knowledge_document, jsonb_array_elements(tags->'tags') AS tag_value " +
-                "WHERE is_delete = false AND tags IS NOT NULL AND tags->'tags' IS NOT NULL " +
-                "GROUP BY tag_value ORDER BY count DESC, tag_value ASC";
-        try {
-            return jdbcTemplate.queryForList(sql);
-        } catch (Exception e) {
-            log.warn("获取标签列表失败", e);
-            return List.of();
-        }
-    }
-
     // ==================== 分块管理 ====================
 
     /**