Fix CultureNotFoundException in ProjectionGraph.IsAssemblyKnownToHaveNoEvolvers under invariant-globalization mode

[jeremydmiller]

Problem

Assembly.GetName().Name, used by the cold-start prefilter in DiscoverGeneratedEvolvers, walks AssemblyName.GetLocale() → CultureInfo.GetCultureInfo(name) under the hood. Under globalization-invariant mode (<InvariantGlobalization>true</InvariantGlobalization> — implied by <PublishAot>true</PublishAot>) any culture-tagged satellite assembly (e.g. pt-br) makes that lookup throw CultureNotFoundException. The result for downstream consumers is a crash on DocumentStore..ctor (or the equivalent host-build entry point):

System.Globalization.CultureNotFoundException: Only the invariant culture is supported in globalization-invariant mode.
See https://aka.ms/GlobalizationInvariantMode for more information. (Parameter 'name') pt-br is an invalid culture identifier.
   at CultureInfo System.Globalization.CultureInfo.GetCultureInfo(string name)
   at CultureInfo System.Reflection.RuntimeAssembly.GetLocale()
   at AssemblyName System.Reflection.RuntimeAssembly.GetName(bool copiedName)
   at bool JasperFx.Events.Projections.ProjectionGraph.IsAssemblyKnownToHaveNoEvolvers(Assembly assembly)
   at void JasperFx.Events.Projections.ProjectionGraph.DiscoverGeneratedEvolvers(params Assembly[] assemblies)

Reported today against Marten's cold-start optimization changes.

Fix

Use Assembly.FullName and split on the first comma to get the simple name. FullName is pre-cached on the runtime assembly and doesn't traverse CultureInfo. Wrap in try/catch as a belt-and-braces guard for exotic loader behaviour — failing to recognise an assembly as "known empty" just falls through to the existing GetCustomAttributes path that has its own try/catch.

Test plan

• dotnet build src/JasperFx.Events/JasperFx.Events.csproj clean
• A precise unit-level repro requires <InvariantGlobalization>true</InvariantGlobalization> plus a loaded satellite assembly, which is hard to wire up in a portable test rig — covered instead by the existing prefilter tests + this fix's defensive try/catch fallback. Will follow up if anyone has a clean way to harness the invariant-mode case.

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