Performance improvements:
- Cache node_modules in addition to ~/.npm to skip dependency installation
- Add TypeScript incremental compilation caching with tsBuildInfoFile
- Parallelize lint and typecheck steps to run concurrently
- Add performance flags: --prefer-offline, --no-audit, --no-fund for npm ci
- Increase Node.js memory limit to 4GB and thread pool size
- Cache build output directory for faster rebuilds
- Upgrade TypeScript target to ES2020 for faster compilation
- Disable Next.js telemetry to reduce overhead
Expected reduction: 5+ minutes → 2-3 minutes
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
