修复一些bug，添加存档文件的维护功能

xiaoding721

2024-10-18 7c37f98f0d6e0da998a5d3dad5dd0081f5686e17

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Quintiq file version 2.0
#parent: #root
Attribute PITVarInitLowerBound
{
  #keys: '3[141320.2.319193640][141320.2.319193639][141320.2.319193641]'
  ValueType: Real
}