ops: add registry prefix to build-image, add push-image script

build-image.sh теперь тегирует как git.mchus.pro/reanimator/jukebox-maker.
push-image.sh собирает мультиарч образ и пушит в Gitea registry.

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

ops/build-image.sh

@@ -8,13 +8,17 @@ if ! command -v docker >/dev/null 2>&1; then
     exit 1
 fi
 
-IMAGE_NAME=${IMAGE_NAME:-jukebox-maker}
+GITEA_REGISTRY="${GITEA_REGISTRY:-git.mchus.pro}"
+GITEA_OWNER="${GITEA_OWNER:-reanimator}"
+IMAGE_NAME="${IMAGE_NAME:-jukebox-maker}"
 DEFAULT_TAG=$(git -C "${ROOT_DIR}" rev-parse --short HEAD 2>/dev/null || echo dev)
-IMAGE_TAG=${1:-${IMAGE_TAG:-${DEFAULT_TAG}}}
+IMAGE_TAG="${1:-${IMAGE_TAG:-${DEFAULT_TAG}}}"
 
-echo "building ${IMAGE_NAME}:${IMAGE_TAG}"
+FULL_IMAGE="${GITEA_REGISTRY}/${GITEA_OWNER}/${IMAGE_NAME}"
+
+echo "building ${FULL_IMAGE}:${IMAGE_TAG}"
 docker build \
     -f "${ROOT_DIR}/Dockerfile" \
-    -t "${IMAGE_NAME}:${IMAGE_TAG}" \
-    -t "${IMAGE_NAME}:latest" \
+    -t "${FULL_IMAGE}:${IMAGE_TAG}" \
+    -t "${FULL_IMAGE}:latest" \
     "${ROOT_DIR}"