feat(borrow,outbound): 默认免审批改造——命中物料需审批才走原流程

- models/base.py 加 is_approval_required 列及 isApprovalRequired 序列化；field_permissions 登记
- 新增 POST /inbound/base/batch-approval（批量设需审批，仿批量质检）
- borrow_service.submit_approval / outbound_service.create_request：明细含需审批物料→须选审批人走原审批；否则创建即 status=1(待库管执行)、不发审批邮件
- 判定按 (name,spec_model) 反查启用物料

inventory-backend/app/services/outbound_service.py

@@ -700,6 +700,33 @@ class OutboundApprovalService:
 
         return f"APR-OUT-{date_str}-{time_str}-{sequence:04d}"
 
+    @staticmethod
+    def _items_require_approval(items):
+        """
+        明细中任一物料命中“出库/借库需审批”→ 需要审批。
+        申请明细只存 name/spec_model，故按 (name, spec_model) 反查启用物料判定。
+        """
+        from app.models.base import MaterialBase
+        seen = set()
+        for item in items:
+            name = str(item.get('name') or '').strip()
+            spec = str(item.get('spec_model') or '').strip()
+            if not name:
+                continue
+            key = (name, spec)
+            if key in seen:
+                continue
+            seen.add(key)
+            hit = MaterialBase.query.filter(
+                MaterialBase.name == name,
+                MaterialBase.spec_model == spec,
+                MaterialBase.is_enabled == True,
+                MaterialBase.is_approval_required == True
+            ).first()
+            if hit:
+                return True
+        return False
+
     @staticmethod
     def create_request(applicant_id, items, allowed_approvers, remark=None, approver_id=None, outbound_type=None):
         """
@@ -745,33 +772,53 @@ class OutboundApprovalService:
             except (TypeError, ValueError) as e:
                 raise ValueError(f"第 {idx + 1} 条物品的 quantity 格式无效: {str(e)}")
 
-        # ★ 校验 allowed_approvers 非空
-        if not allowed_approvers:
-            raise ValueError("必须指定至少一位审批人")
+        # ★ 需审批判定：明细含“出库/借库需审批”物料 → 走原审批流程；否则默认自动通过
+        need_approval = OutboundApprovalService._items_require_approval(items)
+        if need_approval and not approver_id:
+            raise ValueError("该申请包含需审批的物料，请选择审批人后再提交")
 
         # ★ 指定审批人模式：approver_id 覆盖 allowed_approvers
         if approver_id:
             allowed_approvers = [{"type": "user", "value": int(approver_id)}]
+        elif not need_approval:
+            allowed_approvers = []  # 免审批单不绑定审批人
 
         request_no = OutboundApprovalService.generate_request_no()
 
-        approval = OutboundApproval(
-            request_no=request_no,
-            applicant_id=applicant_id,
-            remark=remark,
-            outbound_type=outbound_type,  # 申请时确定的出库类型，扫码出库时带出
-            status=0,  # 待审批
-        )
+        if need_approval:
+            approval = OutboundApproval(
+                request_no=request_no,
+                applicant_id=applicant_id,
+                remark=remark,
+                outbound_type=outbound_type,  # 申请时确定的出库类型，扫码出库时带出
+                status=0,  # 待审批
+            )
+        else:
+            # 默认不审批：创建即已通过(status=1)，直接进入“待库管执行”
+            from datetime import datetime, timezone, timedelta
+            approval = OutboundApproval(
+                request_no=request_no,
+                applicant_id=applicant_id,
+                remark=remark,
+                outbound_type=outbound_type,
+                status=1,
+                actual_approver_id=applicant_id,
+                approved_at=datetime.now(timezone(timedelta(hours=8))),
+            )
 
         # 直接存储前端传来的物料信息快照，不查询/不关联具体库存记录
         approval.set_items(items)
-        approval.set_allowed_approvers(allowed_approvers)
+        if allowed_approvers:
+            approval.set_allowed_approvers(allowed_approvers)
+        else:
+            approval.allowed_approvers = '[]'
 
         db.session.add(approval)
         db.session.commit()
 
-        # ★ 创建成功后，发送邮件通知审批人（精确通知 approver_id 对应的邮箱）
-        OutboundApprovalService._notify_new_request(approval, applicant_id, approver_id=approver_id)
+        # 仅需审批单通知审批人；免审批单静默进入“待库管执行”
+        if need_approval:
+            OutboundApprovalService._notify_new_request(approval, applicant_id, approver_id=approver_id)
 
         return approval