chore: Add scripts folder matching testing

scripts/image-info.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/bash
+
+set -oue pipefail
+
+IMAGE_INFO="/usr/share/ublue-os/image-info.json"
+IMAGE_REF="ostree-image-signed:docker://ghcr.io/$IMAGE_VENDOR/$IMAGE_NAME"
+
+case $FEDORA_MAJOR_VERSION in
+  38|39)
+    IMAGE_TAG="stable"
+    ;;
+  *)
+    IMAGE_TAG="$FEDORA_MAJOR_VERSION"
+    ;;
+esac
+
+cat > $IMAGE_INFO <<EOF
+{
+  "image-name": "$IMAGE_NAME",
+  "image-flavor": "$IMAGE_FLAVOR",
+  "image-vendor": "$IMAGE_VENDOR",
+  "image-ref": "$IMAGE_REF",
+  "image-tag": "$IMAGE_TAG",
+  "image-branch": "$IMAGE_BRANCH",
+  "base-image-name": "$BASE_IMAGE_NAME",
+  "fedora-version": "$FEDORA_MAJOR_VERSION"
+}
+EOF