Add transitive NuGet dependencies to centralized package management

[trejjam]

Summary

• Adds all transitive NuGet dependencies to Directory.Packages.props for explicit version control
• Regenerates package lock files to reflect centrally managed transitive dependencies

Changes

Transitive Dependencies

• Extracted 60 transitive dependencies from packages.lock.json files
• Added to Directory.Packages.props with framework-independent configuration
• All dependencies are now centrally managed with explicit versions

Lock Files

• Regenerated with dotnet restore --force-evaluate
• Transitive dependencies now marked as CentralTransitive instead of Transitive
• Lock files updated to reflect pinned transitive dependency versions from Directory.Packages.props

Benefits

• Reproducible builds - Lock files ensure exact package versions across all environments
• Security - CI validates packages haven't changed unexpectedly
• Transparency - All transitive dependencies explicitly versioned and visible
• Control - Pin transitive dependency versions when needed for stability
• Better dependency management - Centralized version control prevents version conflicts

Verification

✅ dotnet clean - Succeeded
✅ dotnet restore - No warnings
✅ dotnet build - Build succeeded with 0 warnings, 0 errors
✅ dotnet test - All 9 tests passed (net8.0, net9.0, net10.0)
✅ dotnet restore --locked-mode - Verified lock files are valid