Enable running integration specs across multiple test environments

[Copilot]

Summary

Integration specs can now run against both in-process and out-of-process Chronicle setups. Specs are centralized in a shared folder and automatically discovered by the build pipeline.

Added

• Integration/Specifications folder containing all shared integration test specifications
• Integration/DotNET project for out-of-process testing using Chronicle container
• Dynamic namespace discovery in build pipeline that reads folder structure
• Matrix strategy in dotnet-build.yml to run tests across both projects and all discovered namespaces

Changed

• Moved all spec folders (AggregateRoots, Projections, for_EventSequence, for_JobsManager, for_Reactors, for_Reducers) from DotNET.InProcess to Specifications
• Updated spec namespaces from Cratis.Chronicle.InProcess.Integration to Cratis.Chronicle.Integration.Specifications
• DotNET.InProcess now includes specs via <Compile Include="../Specifications/**/*.cs">
• Spec context classes use ChronicleFixture type alias that resolves to different concrete fixture types per project via GlobalUsings
• Build pipeline discovers test namespaces dynamically instead of hardcoded list

Implementation pattern:

// Integration/DotNET.InProcess/GlobalUsings.cs
global using ChronicleFixture = Cratis.Chronicle.XUnit.Integration.ChronicleInProcessFixture;

// Integration/DotNET/GlobalUsings.cs  
global using ChronicleFixture = Cratis.Chronicle.Integration.ChronicleOutOfProcessFixtureWithLocalImage;

// Shared spec in Integration/Specifications/
public class context(ChronicleFixture fixture) : Specification<ChronicleFixture>(fixture)
{
    // Works with both fixture types
}

Note: Some specs using in-process-only features (direct grain access, internal APIs) will only compile/run in DotNET.InProcess. This is expected.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Enable running integration specs for different setups</issue_title>
<issue_description>Today we have the integration specs in Integration/DotNET.InProcess that runs with a MongoDB setup with the Kernel in process.
We want to reuse the specs but just run them for different types of environments and setups. With this we also want to improve the build pipelines for this.

Tasks:

• Create a folder within the Integration folder at the root of the repository calledSpecifications
• Move all the actual specs into this new Specifications folder
• Update DotNET.InProcess project to include all the files as <Compile/> from the Specifications folder
• Add a new project called DotNET and set it up to be not in process by leveraging a container, in the same way we've done it for the Api integration specs.
• Fix the build pipeline (botnet-build.yml - integration-specs) to be dynamic with regards to the namespace matrix, it should use the top level folders from the new Specifications as namespaces.
• Add a second dimension to the matrix with running multiple projects (DotNET.InProcess, DotNET) - we will expand with more later</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Enable running integration specs for different setups #2268

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[github-actions]

Docker Image for this PR:
https://ghcr.io/cratis/chronicle:14.10.3-pr2269.30a1af2

docker run ghcr.io/cratis/chronicle:14.10.3-pr2269.30a1af2

[github-actions]

NuGet packages for this PR, e.g. Chronicle:
https://github.com/Cratis/Chronicle/pkgs/nuget/Cratis.Chronicle

Use version: 14.10.3-pr2269.30a1af2

[github-actions]

Docker Image for this PR:
https://ghcr.io/cratis/chronicle:14.10.3-pr2269.7acaf2a

docker run ghcr.io/cratis/chronicle:14.10.3-pr2269.7acaf2a

[github-actions]

NuGet packages for this PR, e.g. Chronicle:
https://github.com/Cratis/Chronicle/pkgs/nuget/Cratis.Chronicle

Use version: 14.10.3-pr2269.7acaf2a

[github-actions]

Docker Image for this PR:
https://ghcr.io/cratis/chronicle:14.10.3-pr2269.c40693a

docker run ghcr.io/cratis/chronicle:14.10.3-pr2269.c40693a

[github-actions]

NuGet packages for this PR, e.g. Chronicle:
https://github.com/Cratis/Chronicle/pkgs/nuget/Cratis.Chronicle

Use version: 14.10.3-pr2269.c40693a