chore: dockerfile (testing)

deploy/docker/push.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+# One-off build+push to the Gitea container registry for testing.
+# Usage: deploy/docker/push.sh [tag]   (run from repo root, default tag: test)
+set -eu
+
+REGISTRY=git.legrems.mom
+OWNER=polylan
+IMAGE=polylan-submitter
+TAG="${1:-test}"
+
+cd "$(dirname "$0")/../.."
+
+REF="$REGISTRY/$OWNER/$IMAGE:$TAG"
+# buildx (BuildKit) is required: the Dockerfile uses RUN --mount=type=cache
+# for the uv dep cache, which the legacy builder rejects.
+docker buildx build --load -t "$REF" .
+docker push "$REF"
+
+echo "Pushed $REF"