feat: update workflows and Dockerfiles for node-go, node-python, and docker-node images

docker-node/Dockerfile

@@ -0,0 +1,20 @@
+FROM node:lts-slim
+
+ENV DEBIAN_FRONTEND=noninteractive \
+    DOCKER_HOST=unix:///var/run/docker.sock
+
+# Cài git + Docker CLI (repo chính thức Docker)
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends ca-certificates curl gnupg lsb-release git; \
+    install -m 0755 -d /etc/apt/keyrings; \
+    curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc; \
+    chmod a+r /etc/apt/keyrings/docker.asc; \
+    . /etc/os-release; \
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian ${VERSION_CODENAME} stable" \
+      > /etc/apt/sources.list.d/docker.list; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends docker-ce-cli; \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app