fix(F006): 行业分类树形修复 - categoryDeepPageList返回平铺不组装, 改用/list接口+前端按pid组装树, 修复lvl2无父级节点

src/modules/other/category/CategoryDeepListView.vue

@@ -6,7 +6,7 @@
  * props.type: 1=行业 3=资讯分类 (保持现状数据源)
  *
  * 后端端点 (ApiCategoryController /other/category):
- *   GET  categoryDeepPageList?type=  树形列表
+ *   GET  list?type=                   平铺列表 (前端按 pid 组装树; categoryDeepPageList 返回平铺不组装, 勿用)
  *   POST save                         新增 (body: name/type/level/pid/sort/status)
  *   POST update                       修改 (body, 同 save)
  *   GET  delete?id=                   删除 (递归删子级, 注意是 GET query!)
@@ -75,10 +75,32 @@ const displayList = computed(() => filterTree(LIST.value, search.name.trim()))
 async function load() {
   loading.value = true
   try {
-    const r: any = await httpGet('/other/category/categoryDeepPageList', { type: catType.value, page: 1, limit: 500 })
-    LIST.value = r?.list || []
+    // 用 /list 平铺接口 + 前端按 pid 组装树 (categoryDeepPageList 返回平铺不组装, 会导致"二级无父级")
+    const r: any = await httpGet('/other/category/list', { type: catType.value })
+    const flat = r?.list || (Array.isArray(r) ? r : [])
+    LIST.value = buildTree(flat)
   } catch { LIST.value = [] } finally { loading.value = false }
 }
+
+// 按 pid 组装树 (平铺 -> 层级), 排序 sort 升序, 孤立节点挂根
+function buildTree(flat: any[]): Category[] {
+  const map = new Map<string, any>()
+  flat.forEach((n: any) => map.set(String(n.id), { ...n, children: [] }))
+  const roots: any[] = []
+  for (const n of flat) {
+    const node = map.get(String(n.id))
+    const pid = String(n.pid ?? '0')
+    const parent = pid === '0' ? null : map.get(pid)
+    if (parent) parent.children.push(node)
+    else roots.push(node)
+  }
+  const sortRec = (nodes: any[]) => {
+    nodes.sort((a, b) => (a.sort ?? 0) - (b.sort ?? 0))
+    nodes.forEach((n) => sortRec(n.children || []))
+  }
+  sortRec(roots)
+  return roots
+}
 function onSearch() { /* 客户端过滤即时生效 */ }
 function onReset() { search.name = '' }