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/station/station.go

@@ -29,6 +29,8 @@ const (
 	FieldHasDock = "has_dock"
 	// FieldDockCode holds the string denoting the dockcode field in the database.
 	FieldDockCode = "dock_code"
+	// FieldVisibleTabs holds the string denoting the visibletabs field in the database.
+	FieldVisibleTabs = "visible_tabs"
 	// FieldCreatedAt holds the string denoting the createdat field in the database.
 	FieldCreatedAt = "created_at"
 	// Table holds the table name of the station in the database.
@@ -46,6 +48,7 @@ var Columns = []string{
 	FieldIsBuiltin,
 	FieldHasDock,
 	FieldDockCode,
+	FieldVisibleTabs,
 	FieldCreatedAt,
 }