ci: refine workflows and update contributing documentation

- docs: update CONTRIBUTING.md with TUnit instructions and project examples
- ci: improve test runner scripts for Windows and Unix
- ci: refine CI/CD and publish workflows
- docs: update CODE_OF_CONDUCT.md and CHANGELOG.md

Author: Blind-Striker

.github/CODE_OF_CONDUCT.md

@@ -12,7 +12,7 @@ We pledge to act and interact in ways that contribute to an open, welcoming, div
 
 ## Enforcement
 
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement at [[email protected]](mailto:[email protected]).
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement at [[email protected]](mailto:[email protected]).
 
 All complaints will be reviewed and investigated promptly and fairly.
 

.github/CONTRIBUTING.md

@@ -24,7 +24,7 @@ This project follows the [Contributor Covenant Code of Conduct](.github/CODE_OF_
 
 ### Prerequisites
 
-- [.NET SDK 9.0](https://dotnet.microsoft.com/download) (for development)
+- [.NET SDK 10.0](https://dotnet.microsoft.com/download) (for development)
 - [Docker](https://docs.docker.com/get-docker/) (for LocalStack testing)
 - [Git](https://git-scm.com/downloads)
 - IDE: [Visual Studio](https://visualstudio.microsoft.com/), [Rider](https://www.jetbrains.com/rider/), or [VS Code](https://code.visualstudio.com/)
@@ -52,12 +52,17 @@ This project follows the [Contributor Covenant Code of Conduct](.github/CODE_OF_
 
 3. **Run Tests**
 
+   This project uses [TUnit](https://tunit.dev/) as its testing framework.
+
    ```bash
-   # All tests
-   dotnet test --configuration Release
+   # Run all tests
+   dotnet test
+
+   # Run tests for a specific project
+   dotnet test --project tests/Aspire.Hosting.LocalStack.Unit.Tests/Aspire.Hosting.LocalStack.Unit.Tests.csproj
 
-   # With coverage
-   dotnet test --configuration Release
+   # Run specific tests (using standard filter syntax)
+   dotnet test --filter "FullyQualifiedName~HealthCheck"
    ```
 
 ## 🐛 Reporting Issues
@@ -143,7 +148,7 @@ We love new ideas! Here's how to suggest features:
 
 We have multiple test types:
 
-- **Unit Tests** - Fast, isolated, no external dependencies
+- **Unit Tests** - Fast, isolated, no external dependencies (using TUnit)
 - **Integration Tests** - Test AWS Aspire integration
 
 When adding tests:

.github/actions/run-dotnet-tests/run-unix.sh

@@ -30,7 +30,6 @@ for tfm in "${TFMS[@]}"; do
   [[ -z "$tfm" ]] && continue
 
   echo "🧪 $tfm ..."
-  # --timeout ensures test session exits properly (workaround for MTP Linux shutdown bug)
   dotnet test --project "$PROJECT_PATH" -c "$CONFIGURATION" -f "$tfm" --no-build \
          --report-trx --report-trx-filename "testResults-$tfm.trx" \
          --results-directory "$RESULTS_DIR" \

.github/actions/run-dotnet-tests/run-win.ps1

@@ -29,7 +29,6 @@ Write-Host "📋 Target frameworks: $($tfms -join ', ')"
 
 foreach ($tfm in $tfms) {
     Write-Host "🧪 $tfm ..."
-    # --timeout ensures test session exits properly (workaround for MTP shutdown bug)
     dotnet test --project $ProjectPath -c $Configuration -f $tfm --no-build `
         --report-trx --report-trx-filename "testResults-$tfm.trx" `
         --results-directory $ResultsDir `

.github/workflows/ci-cd.yml

@@ -178,7 +178,6 @@ jobs:
         run: dotnet build --configuration Release --no-restore
 
       - name: "Run Unit Tests"
-        # --timeout ensures test session exits properly (workaround for MTP Linux shutdown bug)
         run:  dotnet test --project ./tests/Aspire.Hosting.LocalStack.Unit.Tests/Aspire.Hosting.LocalStack.Unit.Tests.csproj --verbosity normal --configuration Release --no-build -- --timeout 5m
 
       - name: "Setup GitHub Packages Authentication"

.github/workflows/publish-nuget.yml

@@ -58,7 +58,7 @@ jobs:
         run: dotnet build --configuration Release --no-restore
 
       - name: "Run Unit Tests"
-        run:  dotnet test ./tests/Aspire.Hosting.LocalStack.Unit.Tests/Aspire.Hosting.LocalStack.Unit.Tests.csproj --verbosity normal --configuration Release --no-build
+        run:  dotnet test --project ./tests/Aspire.Hosting.LocalStack.Unit.Tests/Aspire.Hosting.LocalStack.Unit.Tests.csproj --verbosity normal --configuration Release --no-build -- --timeout 5m
 
       - name: "Print Package Information"
         run: |

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Async-first assertion API throughout test suite
 
 ### Fixed
+
 - **LocalStack Container Health Check**: Improved cancellation handling during application shutdown
 
 ## [9.5.3] - 2025-11-04