Investigate ZIndex.Tests warning and document test execution

[halcwb]

Issue Description

Investigate test warning about missing tests in Informedica.ZIndex.Tests.dll and document proper test execution.

Warning Details

Informedica.ZIndex.Tests test succeeded with 1 warning(s) (0.6s)
/usr/share/dotnet/sdk/9.0.109/Microsoft.TestPlatform.targets(48,5): warning : No test is available in /home/patrick/projects/GenPres2/tests/Informedica.ZIndex.Tests/bin/Debug/net9.0/Informedica.ZIndex.Tests.dll. Make sure that test discoverer & executors are registered and platform & framework version settings are appropriate and try again.

Questions to Address

1. Is this warning indicating a real problem or can it be ignored?
2. Should tests contain actual test cases or is this expected?
3. Is dotnet test GenPres.sln the correct way to run tests?

Investigation Steps

• Check if Informedica.ZIndex.Tests project contains actual test cases
• Verify test framework configuration (Expecto vs MSTest)
• Document the proper way to run tests
• Fix missing tests or update project configuration

Additional Context

Also observed some debug output and agent disposal warnings during test runs that should be investigated.