fix(server): startlist/results and MeOS upload has improved uploaded content hash

[lukaskett]

Summary

• It skips unchanged content, added ignoring technical timestamp createTime
• Wrong changed file detection #505

Checklist

• I linked the related issue or explained why none is needed.
• I ran the relevant checks for this change.
• I updated documentation or changelog entries when needed.
• By submitting this pull request, I agree to the terms in CLA.md in the
  repository root.

[lukaskett]

Check that it works for MeOS MOP as well. I wonder if it can happen...