SHA256
- Changed GuestDocument PK from `DocumentType`+`DocumentNumber` to to `ID`+`Version` for future versioning. - Added DB field "IsLastVersion" to simplify queries where only last/current version is allowed. - Updated GuestDocument DB fields type for `CreateTime` & `UpdateTime` to add precision. - Updated usages of GuestDocument PK to new PK. - Limit delete of a GuestDocument when it's currently used in a StayEntry. Note: DB changes require recreating db tables, so all data is lost and migration "rollback" is not allowed.