feat: Add fat development Docker container

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>

Dockerfile.dev

@@ -0,0 +1,69 @@
+FROM debian:trixie
+
+LABEL maintainer="Football Build System"
+LABEL description="Fat development container for Football system build"
+
+# Install all necessary build tools
+RUN apt-get update && apt-get install -y \
+    debootstrap \
+    qemu-utils \
+    qemu-system-x86 \
+    qemu-system-x86-64 \
+    grub-efi-amd64 \
+    grub-efi-amd64-bin \
+    grub-common \
+    grub-pc-bin \
+    efibootmgr \
+    dosfstools \
+    parted \
+    fdisk \
+    util-linux \
+    kpartx \
+    squashfs-tools \
+    wireguard \
+    wireguard-tools \
+    openssh-client \
+    rsync \
+    curl \
+    wget \
+    vim \
+    less \
+    grep \
+    iproute2 \
+    iputils-ping \
+    bash-completion \
+    aide \
+    auditd \
+    rsyslog \
+    logrotate \
+    systemd-sysv \
+    linux-image-amd64 \
+    binutils \
+    file \
+    xxd \
+    bsdmainutils \
+    bsdutils \
+    coreutils \
+    findutils \
+    gawk \
+    sed \
+    gawk \
+    perl \
+    python3 \
+    python3-pip \
+    git \
+    gpg \
+    sha256sum \
+    mtools \
+    xorriso \
+    isolinux \
+    syslinux-common \
+    syslinux-utils \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /build
+
+# Default command
+CMD ["/bin/bash"]