add: download ISO to iso/out/ after build

.gitignore

@@ -1,2 +1,3 @@
 .env
 dist/
+iso/out/

scripts/run-builder.sh

@@ -52,6 +52,14 @@ echo "--- running build ---"
 sh iso/builder/build-debug.sh ${EXTRA_ARGS}
 EOF
 
+echo ""
+echo "=== downloading ISO ==="
+LOCAL_ISO_DIR="${REPO_ROOT}/iso/out"
+mkdir -p "${LOCAL_ISO_DIR}"
+scp -o StrictHostKeyChecking=no \
+    "root@${BUILDER_HOST}:/root/bee/dist/*.iso" \
+    "${LOCAL_ISO_DIR}/"
 echo ""
 echo "=== build complete ==="
-echo "Fetch the ISO from ${BUILDER_HOST}:/root/bee/dist/"
+echo "ISO saved to: ${LOCAL_ISO_DIR}/"
+ls -lh "${LOCAL_ISO_DIR}/"*.iso 2>/dev/null || true