C#: Migrate our own solution file to `.slnx`.#21026

Merged

michaelnebel merged 3 commits intogithub:mainfrom

michaelnebel:csharp/migratesolution

Dec 15, 2025

Commits on Dec 12, 2025

C#: Migrate CSharp.sln to CSharp.slnx (as is).
michaelnebel
committed
C#: Update the default solution to point to the .slnx file instead.
michaelnebel
committed
C#: Exclude all test projects from the Release build configuration.
michaelnebel
committed