feat: 重构BOM架构，新增基础设置与虚拟工位管理功能

本次重构删除原有BOM物料清单表，改用工单工艺组合×工艺物料清单作为唯一用料来源；新增系统基础设置表支持WMS地址、日志保留天数等配置，新增虚拟工位作业管理后台接口与前端页签控制功能，同时优化工位号校验逻辑、事件日志自动清理与工单用料查询能力。

bj_power_mes/ent/predicate/predicate.go

@@ -18,9 +18,6 @@ type AssociationTrace func(*sql.Selector)
 // Attachment is the predicate function for attachment builders.
 type Attachment func(*sql.Selector)
 
-// BomItem is the predicate function for bomitem builders.
-type BomItem func(*sql.Selector)
-
 // DailyPlan is the predicate function for dailyplan builders.
 type DailyPlan func(*sql.Selector)
 
@@ -78,6 +75,9 @@ type StepCriterion func(*sql.Selector)
 // StepData is the predicate function for stepdata builders.
 type StepData func(*sql.Selector)
 
+// SysConfig is the predicate function for sysconfig builders.
+type SysConfig func(*sql.Selector)
+
 // TorqueAuditLog is the predicate function for torqueauditlog builders.
 type TorqueAuditLog func(*sql.Selector)