fix: 组织架构部门下拉显示层级路径

- 部门编辑弹窗上级部门下拉显示完整路径如 总公司 / 技术部 / 前端组
- 岗位编辑弹窗所属部门下拉同样显示层级路径
- 下拉选项按路径名排序

frontend/src/pages/OrgChart.tsx

@@ -51,6 +51,28 @@ export default function OrgChart() {
     onError: (err: any) => toast.error(err?.response?.data?.error?.message || '删除失败'),
   })
 
+  // 构建部门层级路径映射，如 "总公司 / 技术部 / 前端组"
+  const buildDeptPath = (departments: any[]): Record<string, string> => {
+    const map: Record<string, string> = {}
+    const byId: Record<string, any> = {}
+    departments.forEach(d => { byId[d.id] = d })
+    const getPath = (d: any): string => {
+      if (map[d.id]) return map[d.id]
+      const parts: string[] = [d.name]
+      let cur = d
+      while (cur.parentId && byId[cur.parentId]) {
+        cur = byId[cur.parentId]
+        parts.unshift(cur.name)
+      }
+      const path = parts.join(' / ')
+      map[d.id] = path
+      return path
+    }
+    departments.forEach(d => getPath(d))
+    return map
+  }
+  const deptPathMap = buildDeptPath(departments)
+
   const toggleExpand = (id: string) => {
     setExpanded(prev => {
       const next = new Set(prev)
@@ -180,9 +202,9 @@ export default function OrgChart() {
             <div>
               <Label>上级部门</Label>
               <Select value={form.parentId} onChange={(e) => setForm({ ...form, parentId: e.target.value })}>
-                {departments.filter((d: any) => d.id !== editing?.id).map((d: any) => (
+                {departments.filter((d: any) => d.id !== editing?.id).sort((a: any, b: any) => (deptPathMap[a.id] || a.name).localeCompare(deptPathMap[b.id] || b.name)).map((d: any) => (
                   <option key={d.id} value={d.id}>
-                    {d.level === 0 && !d.parentId ? `${d.name}（公司）` : d.name}
+                    {d.level === 0 && !d.parentId ? `${d.name}（公司）` : deptPathMap[d.id] || d.name}
                   </option>
                 ))}
               </Select>
@@ -215,6 +237,28 @@ function PositionTab({ positions, departments }: { positions: any[]; departments
   const [editing, setEditing] = useState<any>(null)
   const [form, setForm] = useState<any>({ name: '', departmentId: '', headcount: 0, level: '', description: '' })
 
+  // 构建部门层级路径
+  const buildDeptPath = (depts: any[]): Record<string, string> => {
+    const map: Record<string, string> = {}
+    const byId: Record<string, any> = {}
+    depts.forEach(d => { byId[d.id] = d })
+    const getPath = (d: any): string => {
+      if (map[d.id]) return map[d.id]
+      const parts: string[] = [d.name]
+      let cur = d
+      while (cur.parentId && byId[cur.parentId]) {
+        cur = byId[cur.parentId]
+        parts.unshift(cur.name)
+      }
+      const path = parts.join(' / ')
+      map[d.id] = path
+      return path
+    }
+    depts.forEach(d => getPath(d))
+    return map
+  }
+  const deptPathMap = buildDeptPath(departments)
+
   const createMutation = useMutation({
     mutationFn: (data: any) => editing ? api.put(`/positions/${editing.id}`, data) : api.post('/positions', data),
     onSuccess: () => {
@@ -288,7 +332,7 @@ function PositionTab({ positions, departments }: { positions: any[]; departments
               <Label>所属部门</Label>
               <Select value={form.departmentId} onChange={(e) => setForm({ ...form, departmentId: e.target.value })}>
                 <option value="">无</option>
-                {departments.map(d => <option key={d.id} value={d.id}>{d.name}</option>)}
+                {departments.sort((a: any, b: any) => (deptPathMap[a.id] || a.name).localeCompare(deptPathMap[b.id] || b.name)).map(d => <option key={d.id} value={d.id}>{deptPathMap[d.id] || d.name}</option>)}
               </Select>
             </div>
             <div className="grid grid-cols-2 gap-3">