feat: add Docker Compose setup with Nginx, PostgreSQL, MinIO

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/cms/Dockerfile

@@ -0,0 +1,13 @@
+FROM node:20-alpine AS base
+
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM node:20-alpine AS production
+WORKDIR /app
+COPY --from=base /app ./
+EXPOSE 1337
+CMD ["npm", "run", "start"]