546c3ea5cf
Adds docs/BUILD-DOCUMENTATION.md explaining: - Directory structure (clean and organized) - Complete build process (5 steps) - Preseed configuration details - ISO deployment procedures (bare metal and VM) - Docker container usage (dev and test) - Security features applied during installation - Troubleshooting guide - Next steps for deployment This replaces all scattered old documentation with a single, comprehensive reference for the ISO-based build system. 💘 Generated with Crush Assisted-by: Gemini 2.5 Flash via Crush <crush@charm.land>