add drone integration

docker/Dockerfile

@@ -0,0 +1,15 @@
+ARG NODE_VERSION=22
+FROM node:${NODE_VERSION}-alpine AS base
+WORKDIR /app
+
+FROM base AS build
+ENV BASE_PATH=/
+COPY package.json package-lock.json ./
+RUN npm install
+COPY --link ./ ./
+RUN sed -i 's|"basePath": "/"|"basePath": "'${BASE_PATH:-/}'"|' config.json 
+RUN npm run build
+
+FROM build AS prod
+ENV NODE_ENV=production
+CMD ["npm", "run","serve"]