add x64 bins and arm64 bin

apps/system/docker.sh

@@ -12,4 +12,23 @@ install_docker() {
     warn "Log out and back in for docker group to take effect"
 }
 
-install_docker
+uninstall_docker() {
+    command -v docker &>/dev/null || { log "docker not installed"; return 0; }
+
+    local pkgs=(docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-compose-v2)
+    local installed=()
+    for p in "${pkgs[@]}"; do
+        dpkg -s "$p" &>/dev/null && installed+=("$p")
+    done
+    if [ "${#installed[@]}" -gt 0 ]; then
+        spawn "Removing docker engine" sudo apt purge -y "${installed[@]}"
+        spawn "Cleaning up dependencies" sudo apt autoremove -y
+    fi
+    spawn "Removing docker apt repo" sudo rm -f /etc/apt/sources.list.d/docker.list /etc/apt/keyrings/docker.asc /etc/apt/keyrings/docker.gpg
+    warn "Docker data remains in /var/lib/docker — remove manually if desired"
+}
+
+case "${1:-}" in
+    uninstall) uninstall_docker ;;
+    *) install_docker ;;
+esac