add workflow

frontend/Dockerfile.dev

@@ -0,0 +1,12 @@
+FROM node:20 AS dev
+
+WORKDIR /app
+
+COPY frontend/package.json ./
+COPY frontend/package-lock.json ./
+
+RUN npm install
+
+COPY frontend .
+
+CMD ["npm", "run", "dev", "--", "--host"]