feat(borrow,outbound): 申请预检按需显示审批人——默认不显示，命中需审批才出现并必选

- 后端新增 /borrow/request/check-approval 与 /outbound/request/check-approval 预检接口
- 申请弹窗默认隐藏审批人；提交前预检：命中需审批→显示审批人并红字列物料、未选拦截；未命中→隐藏并直接提交(approver=null)
- 申请 items 补传 base_id 供后端 ID 精确判定

inventory-backend/app/api/v1/outbound.py

@@ -429,6 +429,28 @@ def create_outbound_request():
         return jsonify({'code': 500, 'msg': f'服务器内部错误: {str(e)}'}), 500
 
 
+# --------------------------------------------------------
+# 4.1 出库申请预检（判断所选物料是否需审批，驱动前端是否显示审批人）
+# POST /api/v1/outbound/request/check-approval
+# --------------------------------------------------------
+@outbound_bp.route('/request/check-approval', methods=['POST'])
+@jwt_required()
+@permission_required('outbound_selection')
+def check_outbound_approval():
+    try:
+        data = request.get_json() or {}
+        items = data.get('items', []) or []
+        from app.services.approval_control import resolve_approval_control
+        need_approval, flagged = resolve_approval_control(items)
+        return jsonify({
+            "code": 200, "msg": "success",
+            "data": {"need_approval": need_approval, "materials": flagged}
+        }), 200
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({"code": 500, "msg": f"预检失败: {str(e)}"}), 500
+
+
 # --------------------------------------------------------
 # 5. 审批出库申请
 # PATCH /api/v1/outbound/request/<id>/approve

inventory-backend/app/api/v1/transactions.py

@@ -311,6 +311,25 @@ def close_borrow_request(request_id):
         return jsonify({'code': 500, 'msg': f'服务器内部错误: {str(e)}'}), 500
 
 
+# --- 借库申请预检（判断所选物料是否需审批，驱动前端是否显示审批人） ---
+@trans_bp.route('/borrow/request/check-approval', methods=['POST'])
+@jwt_required()
+@permission_required('op_borrow_apply')
+def check_borrow_approval():
+    try:
+        data = request.get_json() or {}
+        items = data.get('items', []) or []
+        from app.services.approval_control import resolve_approval_control
+        need_approval, flagged = resolve_approval_control(items)
+        return jsonify({
+            "code": 200, "msg": "success",
+            "data": {"need_approval": need_approval, "materials": flagged}
+        }), 200
+    except Exception as e:
+        import traceback; traceback.print_exc()
+        return jsonify({"code": 500, "msg": f"预检失败: {str(e)}"}), 500
+
+
 # --- 获取借库审批单列表 ---
 @trans_bp.route('/borrow/request', methods=['GET'])
 @jwt_required()

inventory-web/src/api/outbound.ts

@@ -99,6 +99,15 @@ export function submitOutboundRequest(data: {
     })
 }
 
+// 出库申请预检：判断所选物料是否需审批
+export function checkOutboundApproval(data: { items: Array<{ name?: string; spec_model?: string }> }) {
+    return request({
+        url: '/v1/outbound/request/check-approval',
+        method: 'post',
+        data
+    })
+}
+
 /**
  * 获取出库审批申请单列表
  * @param params 支持 status, page, limit

inventory-web/src/api/transaction.ts

@@ -149,6 +149,15 @@ export function submitBorrowRequest(data: {
     })
 }
 
+// 借库申请预检：判断所选物料是否需审批
+export function checkBorrowApproval(data: { items: Array<{ name?: string; spec_model?: string }> }) {
+    return request({
+        url: '/v1/transactions/borrow/request/check-approval',
+        method: 'post',
+        data
+    })
+}
+
 /**
  * 获取借库审批申请单列表
  * @param params 支持 status, page, limit

inventory-web/src/views/borrow/apply/index.vue

@@ -394,7 +394,10 @@
       </el-table>
 
       <el-form label-width="100px">
-        <el-form-item label="* 指定审批人" required>
+        <el-form-item v-if="approvalNeedVisible" label="指定审批人">
+          <div v-if="approvalNeedText" style="color:#E6A23C; font-size:12px; line-height:1.4; margin-bottom:4px;">
+            以下物料需审批出库/借库：{{ approvalNeedText }}，请选择审批人
+          </div>
           <el-select
               v-model="requestApproverId"
               placeholder="请选择审批人"
@@ -518,7 +521,7 @@ import { Printer, Search, Plus, Download, List } from '@element-plus/icons-vue'
 import { ElMessage, ElTable, ElMessageBox } from 'element-plus'
 import { printSelectionList } from '@/api/inbound/stock'
 import { useUserStore } from '@/stores/user'
-import { submitBorrowRequest, getBorrowStockList } from '@/api/transaction'
+import { submitBorrowRequest, getBorrowStockList, checkBorrowApproval } from '@/api/transaction'
 import { bomMatchStock } from '@/api/outbound'
 import { getApproversList } from '@/api/auth'
 import { getBomList, getBomDetail, getBomWithStock } from '@/api/bom'
@@ -554,6 +557,9 @@ const requestIndefinite = ref(false)
 const requestApproverId = ref<number | null>(null)
 const approvers = ref<any[]>([])
 const requestSubmitting = ref(false)
+// 是否需审批（由提交前预检驱动，需审批才显示审批人输入框）
+const approvalNeedVisible = ref(false)
+const approvalNeedText = ref('')
 
 const stockList = ref<any[]>([])
 const stockTotal = ref(0)
@@ -1052,6 +1058,8 @@ const openRequestDialog = () => {
   requestApproverId.value = null
   requestExpectedReturn.value = ''
   requestIndefinite.value = false
+  approvalNeedVisible.value = false   // 打开时默认隐藏审批人，命中需审批时由预检显示
+  approvalNeedText.value = ''
   loadApprovers()
   requestDialogVisible.value = true
 }
@@ -1096,23 +1104,44 @@ const buildRemarkWithShortage = (baseRemark: string): string => {
 const confirmSubmitRequest = async () => {
   requestSubmitting.value = true
   try {
-    const payload = {
-      items: validSelectedItems.value.map((item: any) => ({
+    const items = validSelectedItems.value.map((item: any) => ({
+      base_id: item.base_id ?? null,
       name: item.name || '',
       spec_model: item.standard || '',
       warehouse_location: item.warehouse_location || '',
       quantity: item.export_quantity || 0,
       expected_return_time: requestIndefinite.value ? null : requestExpectedReturn.value,
       is_indefinite: requestIndefinite.value
-      })),
+    }))
+
+    // ★ 提交前预检：判断所选物料是否需审批 → 只有需审批才显示并必选审批人
+    let needApproval = false
+    let flagged: any[] = []
+    try {
+      const chk: any = await checkBorrowApproval({ items })
+      needApproval = !!chk?.data?.need_approval
+      flagged = chk?.data?.materials || []
+    } catch (e) { needApproval = false; flagged = [] }
+    approvalNeedVisible.value = needApproval
+    approvalNeedText.value = flagged.map((m: any) => `${m.name}（${m.spec_model || '-'}）`).join('；')
+
+    if (needApproval && !requestApproverId.value) {
+      ElMessage.warning(`以下物料需审批出库/借库：${approvalNeedText.value}。请先选择审批人`)
+      return
+    }
+
+    const payload = {
+      items,
       remark: buildRemarkWithShortage(requestRemark.value.trim()),
-      approver_id: requestApproverId.value
+      approver_id: needApproval ? requestApproverId.value : null
     }
 
     await submitBorrowRequest(payload)
 
     requestDialogVisible.value = false
     selectedItems.value = []
+    approvalNeedVisible.value = false
+    approvalNeedText.value = ''
     ElMessage.success('借库申请已提交（含需审批物料时将进入审批，否则直接交库管执行）')
   } catch (err: any) {
     ElMessage.error(err?.message || err?.msg || '提交申请失败，请重试')

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

@@ -409,7 +409,10 @@
             <el-option label="维修出库" value="REPAIR" />
           </el-select>
         </el-form-item>
-        <el-form-item label="* 指定审批人" required>
+        <el-form-item v-if="approvalNeedVisible" label="指定审批人">
+          <div v-if="approvalNeedText" style="color:#E6A23C; font-size:12px; line-height:1.4; margin-bottom:4px;">
+            以下物料需审批出库/借库：{{ approvalNeedText }}，请选择审批人
+          </div>
           <el-select
               v-model="requestApproverId"
               placeholder="请选择审批人"
@@ -519,7 +522,7 @@ import { ElMessage, ElTable, ElMessageBox } from 'element-plus'
 import { getStockList, printSelectionList } from '@/api/inbound/stock'
 import { getBomList, getBomDetail, getBomWithStock } from '@/api/bom'
 import { useUserStore } from '@/stores/user'
-import { submitOutboundRequest, bomMatchStock } from '@/api/outbound'
+import { submitOutboundRequest, bomMatchStock, checkOutboundApproval } from '@/api/outbound'
 import { getApproversList } from '@/api/auth'
 
 const userStore = useUserStore()
@@ -551,6 +554,9 @@ const requestOutboundType = ref('')  // 申请时必选出库类型，扫码出
 const requestApproverId = ref<number | null>(null)
 const approvers = ref<any[]>([])
 const requestSubmitting = ref(false)
+// 是否需审批（由提交前预检驱动，需审批才显示审批人输入框）
+const approvalNeedVisible = ref(false)
+const approvalNeedText = ref('')
 
 const stockList = ref<any[]>([])     // 服务端分页数据
 const stockTotal = ref(0)
@@ -1079,6 +1085,8 @@ const openRequestDialog = () => {
   }
   requestRemark.value = ''
   requestApproverId.value = null
+  approvalNeedVisible.value = false   // 打开时默认隐藏审批人，命中需审批时由预检显示
+  approvalNeedText.value = ''
   loadApprovers()
   requestDialogVisible.value = true
 }
@@ -1100,7 +1108,6 @@ const confirmSubmitRequest = async () => {
     ElMessage.warning('请填写申请原因')
     return
   }
-  // 审批人改为可选：默认不审批时无需选择；所选物料命中“需审批”但未选审批人时，后端会提示补选
   if (!requestOutboundType.value) {
     ElMessage.warning('请选择出库类型')
     return
@@ -1108,17 +1115,36 @@ const confirmSubmitRequest = async () => {
 
   requestSubmitting.value = true
   try {
-    const payload: any = {
-      items: validSelectedItems.value.map(item => ({
+    const items = validSelectedItems.value.map(item => ({
       material_type: item.typeLabel || item.type || '',
+      base_id: item.base_id ?? null,
       name: item.name || '',
       spec_model: item.standard || '',
       warehouse_location: item.warehouse_location || '',
       quantity: item.export_quantity || 0
-      })),
+    }))
+
+    // ★ 提交前预检：判断所选物料是否需审批 → 只有需审批才显示并必选审批人
+    let needApproval = false
+    let flagged: any[] = []
+    try {
+      const chk: any = await checkOutboundApproval({ items })
+      needApproval = !!chk?.data?.need_approval
+      flagged = chk?.data?.materials || []
+    } catch (e) { needApproval = false; flagged = [] }
+    approvalNeedVisible.value = needApproval
+    approvalNeedText.value = flagged.map((m: any) => `${m.name}（${m.spec_model || '-'}）`).join('；')
+
+    if (needApproval && !requestApproverId.value) {
+      ElMessage.warning(`以下物料需审批出库/借库：${approvalNeedText.value}。请先选择审批人`)
+      return
+    }
+
+    const payload: any = {
+      items,
       remark: buildRemarkWithShortage(trimmed),
       outbound_type: requestOutboundType.value,
-      approver_id: requestApproverId.value
+      approver_id: needApproval ? requestApproverId.value : null
     }
 
     await submitOutboundRequest(payload)
@@ -1126,6 +1152,8 @@ const confirmSubmitRequest = async () => {
     // 成功：关闭弹窗、清空列表、提示
     requestDialogVisible.value = false
     selectedItems.value = []
+    approvalNeedVisible.value = false
+    approvalNeedText.value = ''
     ElMessage.success('出库申请已提交（含需审批物料时将进入审批，否则直接交库管执行）')
   } catch (err: any) {
     ElMessage.error(err?.message || err?.msg || '提交申请失败，请重试')