feat: 新增预警与附件模块，优化工位派工功能

1. 新增预警规则、预警消息、业务附件数据库表与CRUD逻辑
2. 为拧紧记录添加审核人、审核时间字段及审核留痕功能
3. 优化产线点位类型与编号描述，更新工位组合下发菜单名称为工艺路线派工
4. 新增上传文件获取原文件名与大小的工具方法
5. 在系统管理菜单新增预警中心与附件中心入口

bj_power_mes/internal/logic/alert.go

@@ -0,0 +1,106 @@
+package logic
+
+import (
+	"context"
+	"errors"
+
+	"bj_power_mes/ent"
+	"bj_power_mes/ent/alert"
+	"bj_power_mes/ent/alertrule"
+)
+
+// CreateAlertRule 新增预警规则
+func (s *Service) CreateAlertRule(ctx context.Context, name, typ string, threshold float64, receiver string, enabled bool, createdBy string) error {
+	if name == "" || typ == "" {
+		return errors.New("规则名称与类型必填")
+	}
+	_, err := s.ctx.EntClient.AlertRule.Create().
+		SetName(name).SetType(typ).SetThreshold(threshold).
+		SetReceiver(receiver).SetEnabled(enabled).SetCreatedBy(createdBy).Save(ctx)
+	return err
+}
+
+// UpdateAlertRule 修改预警规则
+func (s *Service) UpdateAlertRule(ctx context.Context, id int, name, typ string, threshold float64, receiver string, enabled bool) error {
+	if id <= 0 {
+		return errors.New("规则ID无效")
+	}
+	if name == "" || typ == "" {
+		return errors.New("规则名称与类型必填")
+	}
+	_, err := s.ctx.EntClient.AlertRule.UpdateOneID(id).
+		SetName(name).SetType(typ).SetThreshold(threshold).
+		SetReceiver(receiver).SetEnabled(enabled).Save(ctx)
+	return err
+}
+
+// DeleteAlertRule 删除预警规则
+func (s *Service) DeleteAlertRule(ctx context.Context, id int) error {
+	if id <= 0 {
+		return errors.New("规则ID无效")
+	}
+	return s.ctx.EntClient.AlertRule.DeleteOneID(id).Exec(ctx)
+}
+
+// ListAlertRules 查询全部预警规则
+func (s *Service) ListAlertRules(ctx context.Context) ([]*ent.AlertRule, error) {
+	return s.ctx.EntClient.AlertRule.Query().
+		Order(ent.Desc(alertrule.FieldCreatedAt), ent.Desc(alertrule.FieldID)).All(ctx)
+}
+
+// ListAlerts 查询预警消息（status 空=全部）
+func (s *Service) ListAlerts(ctx context.Context, status string) ([]*ent.Alert, error) {
+	q := s.ctx.EntClient.Alert.Query()
+	if status != "" {
+		q = q.Where(alert.Status(status))
+	}
+	return q.Order(ent.Desc(alert.FieldCreatedAt), ent.Desc(alert.FieldID)).All(ctx)
+}
+
+// UnreadAlertCount 未读预警数
+func (s *Service) UnreadAlertCount(ctx context.Context) (int, error) {
+	return s.ctx.EntClient.Alert.Query().Where(alert.Status("UNREAD")).Count(ctx)
+}
+
+// MarkAlertRead 标记预警已读
+func (s *Service) MarkAlertRead(ctx context.Context, id int) error {
+	if id <= 0 {
+		return errors.New("预警ID无效")
+	}
+	_, err := s.ctx.EntClient.Alert.UpdateOneID(id).SetStatus("READ").Save(ctx)
+	return err
+}
+
+// alertDirection 阈值比较方向：inventory_low 为 <=，其余为 >=
+func alertDirection(typ string) int {
+	if typ == "inventory_low" {
+		return -1
+	}
+	return 1
+}
+
+// Evaluate 预警规则评估：遍历启用且类型匹配的规则，命中阈值则写 alert 消息。
+// 由业务事件触发（如拧紧不合格），也可手动调用。
+func (s *Service) Evaluate(ctx context.Context, typ string, value float64, title, content, refType, refId string) {
+	rules, err := s.ctx.EntClient.AlertRule.Query().
+		Where(alertrule.Type(typ), alertrule.Enabled(true)).All(ctx)
+	if err != nil || len(rules) == 0 {
+		return
+	}
+	dir := alertDirection(typ)
+	for _, r := range rules {
+		hit := (dir == 1 && value >= r.Threshold) || (dir == -1 && value <= r.Threshold)
+		if !hit {
+			continue
+		}
+		_ = s.createAlert(ctx, r.ID, typ, title, content, refType, refId, r.Receiver)
+	}
+}
+
+func (s *Service) createAlert(ctx context.Context, ruleId int, typ, title, content, refType, refId, receiver string) error {
+	_, err := s.ctx.EntClient.Alert.Create().
+		SetRuleId(ruleId).SetType(typ).SetTitle(title).
+		SetContent(content).SetRefType(refType).SetRefId(refId).
+		SetReceiver(receiver).SetStatus("UNREAD").Save(ctx)
+	return err
+}

bj_power_mes/internal/logic/attachment.go

@@ -0,0 +1,39 @@
+package logic
+
+import (
+	"context"
+
+	"bj_power_mes/ent"
+	"bj_power_mes/ent/attachment"
+)
+
+// AddAttachment 新增附件记录
+func (s *Service) AddAttachment(ctx context.Context, bizType, bizId, fileName, filePath string, fileSize int, uploader string) (*ent.Attachment, error) {
+	return s.ctx.EntClient.Attachment.Create().
+		SetBizType(bizType).SetBizId(bizId).SetFileName(fileName).
+		SetFilePath(filePath).SetFileSize(fileSize).SetUploader(uploader).Save(ctx)
+}
+
+// ListAttachments 按业务类型/ID 查询附件
+func (s *Service) ListAttachments(ctx context.Context, bizType, bizId string) ([]*ent.Attachment, error) {
+	q := s.ctx.EntClient.Attachment.Query()
+	if bizType != "" {
+		q = q.Where(attachment.BizType(bizType))
+	}
+	if bizId != "" {
+		q = q.Where(attachment.BizId(bizId))
+	}
+	return q.Order(ent.Desc(attachment.FieldCreatedAt), ent.Desc(attachment.FieldID)).All(ctx)
+}
+
+// DeleteAttachment 删除附件记录并返回记录（供删除物理文件）
+func (s *Service) DeleteAttachment(ctx context.Context, id int) (*ent.Attachment, error) {
+	att, err := s.ctx.EntClient.Attachment.Get(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	if err := s.ctx.EntClient.Attachment.DeleteOneID(id).Exec(ctx); err != nil {
+		return nil, err
+	}
+	return att, nil
+}

bj_power_mes/internal/logic/torque.go

@@ -8,6 +8,7 @@ import (
 	"bj_power_mes/ent"
 	"bj_power_mes/ent/station"
 	"bj_power_mes/ent/stepcriterion"
+	"bj_power_mes/ent/torqueauditlog"
 	"bj_power_mes/ent/torquerecord"
 	"bj_power_mes/ent/workpieceprocess"
 )
@@ -63,6 +64,7 @@ func (s *Service) ReportTorque(ctx context.Context, req TorqueReq, operator stri
 func (s *Service) evaluateTorqueCriterion(ctx context.Context, sn, stationNo string, strain, angle float64, operator string) {
 	q := s.ctx.EntClient.StepCriterion.Query().Where(stepcriterion.Name("扭矩"))
 	crits, _ := q.All(ctx)
+	ng := false
 	for _, c := range crits {
 		if c.Logic != "RANGE" {
 			continue
@@ -78,6 +80,12 @@ func (s *Service) evaluateTorqueCriterion(ctx context.Context, sn, stationNo str
 			SetSn(sn).SetStepId(c.StepId).SetCriterionId(c.ID).
 			SetCriterionName(c.Name).SetCriterionLogic(c.Logic).
 			SetValue(strain).SetIsOK(ok).SetOperator(operator).Save(ctx)
+		if !ok {
+			ng = true
+		}
+	}
+	if ng {
+		s.Evaluate(ctx, "torque_ng", 1, "拧紧扭矩不合格", "SN="+sn+" 工位"+stationNo, "torque_record", sn)
 	}
 }
 
@@ -106,7 +114,7 @@ func (s *Service) AddTorqueRecord(ctx context.Context, sn, workOrderNo, screwNo,
 		result = "OK"
 	}
 	now := time.Now()
-	_, err := s.ctx.EntClient.TorqueRecord.Create().
+	rec, err := s.ctx.EntClient.TorqueRecord.Create().
 		SetSn(sn).SetWorkOrderNo(workOrderNo).SetScrewNo(screwNo).SetStationNo(stationNo).
 		SetStrain(strain).SetTorque(strain).SetAngle(angle).
 		SetResult(result).SetOperator(operator + "(补录)").SetTime(now).
@@ -114,11 +122,41 @@ func (s *Service) AddTorqueRecord(ctx context.Context, sn, workOrderNo, screwNo,
 	if err != nil {
 		return err
 	}
+	_, _ = s.ctx.EntClient.TorqueAuditLog.Create().
+		SetTorqueRecordId(rec.ID).SetAction("补录").SetOperator(operator).
+		SetRemark(reason).SetNewVal(result).Save(ctx)
 	s.ctx.EventLog.Write(ctx, "torque.manual.add", workOrderNo, operator, "torque_record", sn,
 		"拧紧数据补录 "+workOrderNo+" "+sn, map[string]any{"reason": reason, "result": result, "screwNo": screwNo, "stationNo": stationNo})
 	return nil
 }
 
+// AuditTorqueRecord 拧紧记录审核签字：标记审核人/时间并写留痕
+func (s *Service) AuditTorqueRecord(ctx context.Context, recordId int, remark, operator string) error {
+	rec, err := s.ctx.EntClient.TorqueRecord.Get(ctx, recordId)
+	if err != nil {
+		return errors.New("拧紧记录不存在")
+	}
+	if rec.AuditBy != "" {
+		return errors.New("该记录已审核，不可重复审核")
+	}
+	_, err = rec.Update().SetAuditBy(operator).SetAuditAt(time.Now()).Save(ctx)
+	if err != nil {
+		return err
+	}
+	_, _ = s.ctx.EntClient.TorqueAuditLog.Create().
+		SetTorqueRecordId(rec.ID).SetAction("审核").SetOperator(operator).
+		SetRemark(remark).SetOldVal(rec.AuditBy).SetNewVal(operator).Save(ctx)
+	return nil
+}
+
+// ListTorqueAuditLog 查询某拧紧记录的修改留痕
+func (s *Service) ListTorqueAuditLog(ctx context.Context, recordId int) ([]*ent.TorqueAuditLog, error) {
+	return s.ctx.EntClient.TorqueAuditLog.Query().
+		Where(torqueauditlog.TorqueRecordId(recordId)).
+		Order(ent.Desc(torqueauditlog.FieldCreatedAt)).All(ctx)
+}
+
+
 // 计算一块工件某工序的扭矩步骤是否已报
 func (s *Service) hasWorkpieceProcess(ctx context.Context, sn string, processCode int) bool {
 	cnt, _ := s.ctx.EntClient.WorkpieceProcess.Query().