Add minimal documentation for new features in Bun v1.2.1:
- S3 storageClass option for presigned URLs
- X25519 curve support in crypto.generateKeyPair
- Indented inline snapshots in bun test
- minify option for HTML imports in bunfig.toml
- --zero-fill-buffers CLI flag
- reuseAddr/reusePort options for UDP sockets
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>