Possible problematic Unit tests

[Zargess]

Potentially problematic tests

We will monitor the following tests to see if they keep randomly failing, and if they do, then investigate further.

• GetConversationsRequestTests#userHasTwoConversationsWithOneInFilter_ShouldReturnOnePlaceholderAndOneConversationUpdate (failed 14/7-2025)
• LogBasedDatabasePerformanceTests#testStartupPerformance() (failed 22/12-2025)
  • Periodic fail on both windows and mac
  • https://github.com/miniwolf/Fagi/actions/runs/20432178636/job/58706621127?pr=56