Add CodSpeed performance benchmarking integration
- Add codspeed-criterion-compat 4.1.0 as dev dependency
- Create comprehensive benchmark suite with 5 benchmarks covering different package.json scenarios
- Add GitHub Actions workflow for automated performance testing
- Configure benchmarks to run on pushes to main and pull requests
- Use OIDC authentication for secure, token-less workflow execution
Add CodSpeed benchmarking integration
- Add codspeed-criterion-compat dependency for Rust benchmarking
- Create comprehensive benchmark suite testing various package.json sizes
- Add GitHub Actions workflow with OIDC authentication
- Configure benchmarks to run on main branch and pull requests