ops: simplify to single Image prompt instead of registry+owner

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ops/build-image.sh

@@ -5,7 +5,10 @@
 #   ./ops/build-image.sh
 #
 # Usage (non-interactive — all values as positional args):
-#   ./ops/build-image.sh <tag> <registry> <owner>
+#   ./ops/build-image.sh <tag> <image>
+#
+# Example:
+#   ./ops/build-image.sh v1.0 registry.example.com/myorg/myapp
 
 set -eu
 
@@ -16,7 +19,6 @@ command -v docker >/dev/null 2>&1 || { echo "error: docker not found in PATH" >&
 DEFAULT_TAG=$(git -C "${ROOT_DIR}" rev-parse --short HEAD 2>/dev/null || echo dev)
 
 ask() {
-    # $1 = variable name, $2 = prompt, $3 = default
     if [ -n "$3" ]; then
         printf "%s [%s]: " "$2" "$3" >&2
     else
@@ -26,26 +28,20 @@ ask() {
     eval "$1=\"\${_val:-$3}\""
 }
 
-if [ $# -ge 3 ]; then
+if [ $# -ge 2 ]; then
     IMAGE_TAG="$1"
-    REGISTRY="$2"
-    OWNER="$3"
+    IMAGE="$2"
 elif [ $# -ge 1 ]; then
     IMAGE_TAG="$1"
-    ask REGISTRY "Registry" ""
-    ask OWNER    "Owner"    ""
+    ask IMAGE "Image" ""
 else
-    ask IMAGE_TAG "Tag"      "${DEFAULT_TAG}"
-    ask REGISTRY  "Registry" ""
-    ask OWNER     "Owner"    ""
+    ask IMAGE_TAG "Tag"   "${DEFAULT_TAG}"
+    ask IMAGE     "Image" ""
 fi
 
-IMAGE_NAME="${IMAGE_NAME:-jukebox-maker}"
-FULL_IMAGE="${REGISTRY}/${OWNER}/${IMAGE_NAME}"
-
-echo "building ${FULL_IMAGE}:${IMAGE_TAG}"
+echo "building ${IMAGE}:${IMAGE_TAG}"
 docker build \
     -f "${ROOT_DIR}/Dockerfile" \
-    -t "${FULL_IMAGE}:${IMAGE_TAG}" \
-    -t "${FULL_IMAGE}:latest" \
+    -t "${IMAGE}:${IMAGE_TAG}" \
+    -t "${IMAGE}:latest" \
     "${ROOT_DIR}"