refactor: 重构工艺工序相关命名与数据模型

1.  全局替换"工序"为"工艺"统一术语，包括页面文案、枚举、注释
2.  重构工单与工件工艺数据模型：
    - 新增工艺组合表flow_material作为备料/齐套唯一源头
    - 新增工位状态表station_state支持自主停单/恢复接单
    - 移除station_process派工表，改用工单工艺组合作为路线唯一源头
    - 替换processCode为flowId作为工艺关联标识
    - 重构工件当前进度字段为currentStationNo
3.  删除冗余的静态备份资源文件
4.  调整物料选择组件默认启用仅显示激活物料
5.  优化工单创建/编辑逻辑，新增工艺组合校验与保存

bj_power_mes/ent/materialrequest_create.go

@@ -142,16 +142,16 @@ func (_c *MaterialRequestCreate) SetNillableStationNo(v *int) *MaterialRequestCr
 	return _c
 }
 
-// SetProcessCode sets the "processCode" field.
-func (_c *MaterialRequestCreate) SetProcessCode(v int) *MaterialRequestCreate {
-	_c.mutation.SetProcessCode(v)
+// SetFlowId sets the "flowId" field.
+func (_c *MaterialRequestCreate) SetFlowId(v int) *MaterialRequestCreate {
+	_c.mutation.SetFlowId(v)
 	return _c
 }
 
-// SetNillableProcessCode sets the "processCode" field if the given value is not nil.
-func (_c *MaterialRequestCreate) SetNillableProcessCode(v *int) *MaterialRequestCreate {
+// SetNillableFlowId sets the "flowId" field if the given value is not nil.
+func (_c *MaterialRequestCreate) SetNillableFlowId(v *int) *MaterialRequestCreate {
 	if v != nil {
-		_c.SetProcessCode(*v)
+		_c.SetFlowId(*v)
 	}
 	return _c
 }
@@ -407,9 +407,9 @@ func (_c *MaterialRequestCreate) defaults() {
 		v := materialrequest.DefaultStationNo
 		_c.mutation.SetStationNo(v)
 	}
-	if _, ok := _c.mutation.ProcessCode(); !ok {
-		v := materialrequest.DefaultProcessCode
-		_c.mutation.SetProcessCode(v)
+	if _, ok := _c.mutation.FlowId(); !ok {
+		v := materialrequest.DefaultFlowId
+		_c.mutation.SetFlowId(v)
 	}
 	if _, ok := _c.mutation.SentQty(); !ok {
 		v := materialrequest.DefaultSentQty
@@ -545,8 +545,8 @@ func (_c *MaterialRequestCreate) check() error {
 	if _, ok := _c.mutation.StationNo(); !ok {
 		return &ValidationError{Name: "stationNo", err: errors.New(`ent: missing required field "MaterialRequest.stationNo"`)}
 	}
-	if _, ok := _c.mutation.ProcessCode(); !ok {
-		return &ValidationError{Name: "processCode", err: errors.New(`ent: missing required field "MaterialRequest.processCode"`)}
+	if _, ok := _c.mutation.FlowId(); !ok {
+		return &ValidationError{Name: "flowId", err: errors.New(`ent: missing required field "MaterialRequest.flowId"`)}
 	}
 	if _, ok := _c.mutation.SentQty(); !ok {
 		return &ValidationError{Name: "sentQty", err: errors.New(`ent: missing required field "MaterialRequest.sentQty"`)}
@@ -695,9 +695,9 @@ func (_c *MaterialRequestCreate) createSpec() (*MaterialRequest, *sqlgraph.Creat
 		_spec.SetField(materialrequest.FieldStationNo, field.TypeInt, value)
 		_node.StationNo = value
 	}
-	if value, ok := _c.mutation.ProcessCode(); ok {
-		_spec.SetField(materialrequest.FieldProcessCode, field.TypeInt, value)
-		_node.ProcessCode = value
+	if value, ok := _c.mutation.FlowId(); ok {
+		_spec.SetField(materialrequest.FieldFlowId, field.TypeInt, value)
+		_node.FlowId = value
 	}
 	if value, ok := _c.mutation.SentQty(); ok {
 		_spec.SetField(materialrequest.FieldSentQty, field.TypeFloat64, value)