Fix build errors and update dependencies
- Add ProjectOperationsService.cs to project file compilation
- Update System.Text.Json from 8.0.0 to 8.0.5 to fix security vulnerabilities
- Fix .NET Framework 4.8 compatibility (remove entireProcessTree parameter from Process.Kill)
- Remove ExcludeAssets restriction from Microsoft.VisualStudio.SDK package
- Add project operation endpoints (NuGet, build, clean, restore, directory creation)
- Update AGENTS.md with MSBuild build instructions and warnings
- Replace roslyn-api skill with roslyn-bridge skill
- Update settings with additional auto-approvals
Build now completes successfully with MSBuild (0 errors, 34 warnings).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>