Integrate Particle-OS tools into simple-cli

- Add apt-ostree, deb-bootupd, and bootc packages to tools/
- Update Containerfile to install Particle-OS tools with dependencies
- Add tool verification script and updated welcome message
- Update justfile with new build and test recipes
- Add comprehensive tool testing and bootable image generation
- Successfully integrate 2/3 tools (apt-ostree and bootupd working)
- Note: bootc package contains only documentation, not binary

Ready for bootable image generation and QEMU testing!

SCOPE.md

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+# Simple-CLI Scope Definition
+
+## 🎯 Purpose
+Simple-CLI is a **barebones particle-os proving ground** - a minimal reference implementation that demonstrates the core particle-os concept works.
+
+## ✅ What Simple-CLI Should Have
+
+### Core System
+- **Basic OS packages**: systemd, bash, coreutils, vim, less
+- **OSTree integration**: Core particle-os immutable functionality
+- **Boot system**: bootupd, GRUB, initramfs
+- **Kernel**: linux-image-amd64 with basic drivers
+
+### Container & Development
+- **Podman**: Basic container runtime
+- **Toolbox**: **CRITICAL** - makes immutable distros usable
+- **Basic build tools**: Just automation, container building
+- **Skopeo**: Container image inspection
+
+### Minimal Utilities
+- **Network tools**: curl, wget, basic networking
+- **File tools**: Basic file operations
+- **Shell tools**: bash-completion, basic shell utilities
+
+### Essential Immutable Distro Tools
+- **Hardware monitoring**: lm_sensors, powertop, evtest
+- **Network tools**: iwd (wireless), wireguard-tools (VPN)
+- **Development tools**: make, gcc, python3-pip
+- **System utilities**: bcache-tools, fuse-encfs, libxcrypt-compat
+- **Hardware support**: input-remapper, usbmuxd, oddjob-mkhomedir
+
+## ❌ What Simple-CLI Should NOT Have
+
+### Advanced Container Tools
+- docker-compose, docker-buildx, podman-compose
+- Advanced container orchestration
+
+### System Management
+- cockpit, firewalld, pcp monitoring
+- Advanced system administration tools
+
+### Storage & File Systems
+- ZFS, mergerfs, rclone
+- Advanced storage management
+
+### Virtualization
+- libvirt, virt-install, KVM tools
+
+### Advanced Networking
+- Advanced VPN tools beyond wireguard-tools
+
+## 🚀 What Goes to bosom Instead
+
+**bosom** will be the "batteries included" CoreOS equivalent that includes:
+- All the advanced features removed from simple-cli
+- Production-ready tooling
+- Server and HCI capabilities
+- Advanced storage and networking
+
+## 🔧 Why This Scope Matters
+
+1. **Proving Ground**: simple-cli proves particle-os concept works
+2. **Reference Implementation**: Minimal example for other variants
+3. **Development Focus**: Toolbox makes it usable for development
+4. **Clear Separation**: Simple vs. advanced use cases
+5. **Maintainability**: Easier to maintain and debug minimal system
+6. **Immutable Essentials**: Includes tools needed for immutable distro usability
+
+## 📋 Success Criteria
+
+Simple-CLI succeeds when:
+- ✅ Boots and runs as immutable particle-os
+- ✅ Toolbox provides usable development environment
+- ✅ Basic container operations work
+- ✅ OSTree updates and rollbacks function
+- ✅ Can be used as reference for other variants
+- ✅ Includes essential tools for immutable distro usability