refactor: Complete directory cleanup

Finalizes directory cleanup by removing obsolete files:
- All old debootstrap build scripts (docker-*.sh, final-simple-build.sh)
- All old documentation from root (BUILD-*.md, DOCKER-*.md)
- Obsolete Dockerfiles (Dockerfile, Dockerfile.build)
- Obsolete chroot-overlay/ directory (now using preseed.cfg)
- Old build.sh (replaced by scripts/build-iso.sh)

All files are now in proper directories:
- scripts/: Build and test scripts
- docs/: All documentation
- config/: Configuration files
- logs/: Log files
- keys/: WireGuard keys

Repository is clean and ready for production.

💘 Generated with Crush

Assisted-by: Gemini 2.5 Flash via Crush <crush@charm.land>

Dockerfile

@@ -1,55 +0,0 @@
-# Football System - Complete Docker Build
-# Entire build process runs inside Docker - no host dependencies needed
-
-FROM debian:trixie
-
-# Environment
-ENV DEBIAN_FRONTEND=noninteractive
-
-# Install ALL required build tools
-RUN apt-get update && \
-    apt-get install -y \
-    # Build tools
-    debootstrap \
-    qemu-utils \
-    qemu-system-x86 \
-    qemu-system-common \
-    qemu-system-gui \
-    qemu-system-x86 \
-    kpartx \
-    squashfs-tools \
-    parted \
-    dosfstools \
-    # GRUB and boot tools
-    grub2-common \
-    grub-efi-amd64 \
-    grub-efi-amd64-bin \
-    grub-pc-bin \
-    grub-common \
-    shim-signed \
-    shim-signed-common \
-    # System tools
-    bash \
-    coreutils \
-    util-linux \
-    # WireGuard
-    wireguard-tools \
-    # Other tools
-    ca-certificates \
-    curl \
-    wget \
-    git && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/*
-
-# Create build directory
-WORKDIR /build
-
-# Copy build files
-COPY config/ chroot-overlay/ *.sh /build/
-
-# Create output directory
-RUN mkdir -p /build/output
-
-# Default command
-CMD ["/bin/bash"]