Refactor bee CLI and LiveCD integration

iso/builder/Dockerfile

@@ -0,0 +1,44 @@
+FROM debian:12
+
+ARG GO_VERSION=1.23.6
+ARG DEBIAN_KERNEL_ABI=6.1.0-43
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update -qq && apt-get install -y \
+    ca-certificates \
+    live-build \
+    debootstrap \
+    squashfs-tools \
+    xorriso \
+    grub-pc-bin \
+    grub-efi-amd64-bin \
+    mtools \
+    git \
+    wget \
+    curl \
+    tar \
+    xz-utils \
+    rsync \
+    build-essential \
+    gcc \
+    make \
+    perl \
+    "linux-headers-${DEBIAN_KERNEL_ABI}-amd64" \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN arch="$(dpkg --print-architecture)" \
+    && case "$arch" in \
+        amd64) goarch=amd64 ;; \
+        arm64) goarch=arm64 ;; \
+        *) echo "unsupported architecture: $arch" >&2; exit 1 ;; \
+    esac \
+    && wget -q -O /tmp/go.tar.gz "https://go.dev/dl/go${GO_VERSION}.linux-${goarch}.tar.gz" \
+    && rm -rf /usr/local/go \
+    && tar -C /usr/local -xzf /tmp/go.tar.gz \
+    && rm -f /tmp/go.tar.gz
+
+ENV PATH=/usr/local/go/bin:${PATH}
+WORKDIR /work
+
+CMD ["/bin/bash"]