ci: publish multi-arch ChatLab CLI image

.github/docker/chatlab-cli.Dockerfile

@@ -0,0 +1,26 @@
+# syntax=docker/dockerfile:1
+
+FROM node:24-bookworm-slim
+
+ARG CHATLAB_VERSION
+
+RUN test -n "$CHATLAB_VERSION" \
+    && apt-get update \
+    && apt-get install --yes --no-install-recommends g++ make python3 \
+    && npm install --global --omit=dev "chatlab-cli@${CHATLAB_VERSION}" \
+    && npm cache clean --force \
+    && apt-get purge --yes --auto-remove g++ make python3 \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV CHATLAB_DATA_DIR=/data
+
+RUN install -d -o node -g node /data
+
+WORKDIR /data
+
+USER node
+
+EXPOSE 3110
+
+ENTRYPOINT ["chatlab"]
+CMD ["start", "--no-open", "--host", "0.0.0.0"]