Adds Dockerfile.dev with comprehensive build tools including:
- debootstrap, qemu-utils, grub-efi
- parted, fdisk, kpartx for disk partitioning
- WireGuard, OpenSSH for networking
- All required utilities for full build system
💘 Generated with Crush
Assisted-by: Gemini 2.5 Flash via Crush <crush@charm.land>
