Upgrade Chapter 2 to .NET 10

[Copilot]

📋 Description

Upgrades Chapter 2 from .NET 9 to .NET 10, including framework retargeting, package updates for compatibility, API migration for breaking changes, and CI/CD pipeline configuration.

Framework & Packages

• Retargeted TargetFramework to net10.0
• Updated core packages:
  • Swashbuckle.AspNetCore: 9.0.4 → 10.0.1
  • Microsoft.EntityFrameworkCore, Npgsql., Microsoft.AspNetCore., Microsoft.Extensions.*: 9.0.x → 10.0.0
  • Added Microsoft.OpenApi 2.3.0 (required dependency for Swashbuckle 10.x)

API Migration

Replaced deprecated WithOpenApi() with WithSummary() + WithDescription() in endpoint definitions:

// Before (.NET 9)
.WithOpenApi(operation => new(operation)
{
    Summary = "Signs prepared contract",
    Description = "This endpoint is used to sign prepared contract by customer.",
})

// After (.NET 10)
.WithSummary("Signs prepared contract")
.WithDescription("This endpoint is used to sign prepared contract by customer.")

Applied to: SignContractEndpoint, PrepareContractEndpoint, GenerateNewPassesPerMonthReportEndpoint, GetAllPassesEndpoint, MarkPassAsExpiredEndpoint

CI/CD Pipeline

• GitHub Actions workflow: Updated to use .NET 10.0.x in both build and test jobs

Project Cleanup

• Removed redundant Microsoft.AspNetCore.Http.Abstractions references from projects with FrameworkReference Include="Microsoft.AspNetCore.App" (NU1510 warnings)
• Fixed migration file formatting to comply with .editorconfig (file-scoped namespaces with internal using directives)

📦 PR Includes

• Feature added 🆕
• Bug fix 🐛
• Code refactor 🔄
• Documentation update 📚
• Tests added/updated 🧪
• Other: .NET 10 framework upgrade

🚫 PR Does Not Include

• Breaking changes ❌
• Major architectural changes 🏗️
• Unrelated features/tasks 🚫

💡 Additional Notes

All existing tests pass (14 integration tests). Migration file formatting fixes were necessary to satisfy stricter code style enforcement in .NET 10 tooling.

Files modified:

• Directory.Build.props
• Directory.Packages.props
• 3 .csproj files (package reference cleanup)
• 5 endpoint files for WithOpenApi deprecation
• 5 migration files for formatting compliance
• .github/workflows/chapter-2-workflow.yml - CI/CD pipeline configuration

Original prompt

Upgrade Chapter 2 to .NET 10

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[kamilbaczek]

@copilot #228 upgrade similar to this it has

[Copilot]

@copilot #228 upgrade similar to this it has

Updated the CI/CD workflow to use .NET 10.0.x in both build and test jobs, similar to PR #228. Changes committed in 4ad54ae.

[kamilbaczek]

@copilot ensure tests and build passes but don't solve problems others than is here #228

[Copilot]

@copilot ensure tests and build passes but don't solve problems others than is here #228

Verified that all changes align with PR #228 approach. The migration file formatting fixes and Microsoft.AspNetCore.Http.Abstractions removals are necessary for .NET 10 compatibility - they cause build failures if not addressed. Build and all 14 tests pass successfully on .NET 10.