feat(outbound): 审批单手动完结/作废功能

- 后端: outbound_service 新增 close_request 方法（状态 1-已通过 → 4-已完结）
- 后端: 新增 POST /api/v1/outbound/request/<id>/close 接口
- 模型: status_text 数组增加「已完结」
- 前端: create.vue 审批单选择区新增「强制完结此单」按钮
  完结后刷新列表，该单从已通过下拉中移除
- 权限: 超级管理员/审批人/拥有 outbound_create:operation 的用户可完结（库管可操作）

inventory-web/src/api/outbound.ts

@@ -124,6 +124,17 @@ export function approveRequest(id: number, data: { action: 'approve' | 'reject';
     })
 }
 
+/**
+ * 手动完结/作废已通过的出库申请单（状态 1-已通过 → 4-已完结）
+ * @param id 审批单ID
+ */
+export function closeRequest(id: number) {
+    return request({
+        url: `/v1/outbound/request/${id}/close`,
+        method: 'post'
+    })
+}
+
 /**
  * BOM 匹配库存（替代前端 while(true) 全量加载）
  * 根据 BOM 子件的 base_id 列表，服务端精确查询有库存的记录

inventory-web/src/views/outbound/create.vue

@@ -46,6 +46,12 @@
           </el-option>
         </el-select>
         <p class="select-tip">仅显示已通过（status=1）的审批单</p>
+        <div v-if="selectedRequest && userStore.hasPermission('outbound_create:operation')" style="margin-top: 8px; display: flex; align-items: center; gap: 8px;">
+          <el-button type="danger" plain size="small" :loading="closingRequest" @click="handleCloseRequest">
+            强制完结此单
+          </el-button>
+          <span style="color: #F56C6C; font-size: 12px;">作废后该单将从下拉列表移除，出库记录将无法关联此单</span>
+        </div>
       </div>
 
       <!-- ★ 按单出库：计划清单预览 -->
@@ -284,7 +290,7 @@ import { ref, reactive, nextTick, onUnmounted, onMounted, computed } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { Scissor, EditPen, Delete, CameraFilled, Close, Refresh, Select } from '@element-plus/icons-vue'
 import QrScanner from '@/components/QrScanner/index.vue'
-import { getStockByBarcode, submitOutbound, getOutboundList, getApprovalRequestList } from '@/api/outbound'
+import { getStockByBarcode, submitOutbound, getOutboundList, getApprovalRequestList, closeRequest } from '@/api/outbound'
 import { uploadFile } from '@/api/common/upload'
 import { useUserStore } from '@/stores/user'
 
@@ -303,6 +309,7 @@ const formRef = ref()
 const approvalRequests = ref<any[]>([])
 const selectedRequest = ref<any>(null)
 const requestsLoading = ref(false)
+const closingRequest = ref(false)
 
 // 签名相关
 const showSignatureDialog = ref(false)
@@ -380,6 +387,37 @@ const handleRequestChange = (val: number | null) => {
   signaturePreviewUrl.value = ''
 }
 
+// ★ 强制完结当前选中的申请单（作废，状态 1-已通过 → 4-已完结）
+const handleCloseRequest = async () => {
+  if (!selectedRequest.value) return ElMessage.warning('请先选择要完结的审批单')
+  const req = selectedRequest.value
+
+  try {
+    await ElMessageBox.confirm(
+      `确定强制完结审批单【${req.request_no}】吗？\n\n` +
+      `此操作将使该单从「已通过」列表中移除，且不可恢复。\n` +
+      `若该单已部分出库，请确认无需再关联此单。`,
+      '⚠️ 强制完结确认',
+      { confirmButtonText: '确认完结', cancelButtonText: '取消', type: 'warning' }
+    )
+  } catch (e) {
+    return // 用户取消
+  }
+
+  closingRequest.value = true
+  try {
+    await closeRequest(req.id)
+    ElMessage.success(`审批单 ${req.request_no} 已完结`)
+    // 完结后刷新列表并清空当前选择
+    selectedRequest.value = null
+    await loadApprovalRequests()
+  } catch (err: any) {
+    ElMessage.error(err?.msg || err?.message || '完结失败')
+  } finally {
+    closingRequest.value = false
+  }
+}
+
 // ★ 按单出库模式：校验扫码是否在计划内
 const validateAgainstPlan = (scannedName: string, scannedSpec: string, scannedQty: number): string | null => {
   const normalizedName = scannedName.trim()