Support rootless Podman builds

bin/clean-docker

@@ -1,21 +1,27 @@
 #!/bin/bash
-# Clean Docker builder images and cache
+# Clean builder images and cache for the selected container engine
 # Forces a fresh image build on next run
 
 set -e
 
 BUILD_ROOT=$(realpath "${BASH_SOURCE[0]%/*}/..")
 source "$BUILD_ROOT/helpers/message-helpers.sh"
+source "$BUILD_ROOT/helpers/docker-helpers.sh"
 
-print_header "Cleaning Docker Builder Images"
+check_engine
+print_header "Cleaning Container Builder Images"
 
 # Remove all omarchy-pkg-builder images
 print_info "Removing omarchy-pkg-builder images..."
-docker images omarchy-pkg-builder -q | xargs -r docker rmi -f 2>/dev/null || true
+"$CONTAINER_ENGINE" images omarchy-pkg-builder -q | xargs -r "$CONTAINER_ENGINE" rmi -f 2>/dev/null || true
 
-# Clear buildx cache for these builds
-print_info "Clearing buildx cache..."
-docker buildx prune -a -f
+# Clear this engine's build cache.
+print_info "Clearing build cache..."
+if [[ "$CONTAINER_ENGINE" == "docker" ]]; then
+  "$CONTAINER_ENGINE" buildx prune -a -f
+else
+  "$CONTAINER_ENGINE" image prune --build-cache -f
+fi
 
-print_success "Docker builder cache cleared"
+print_success "Container builder cache cleared"
 print_info "Next build will create fresh images"