feat: scrape HN favorites as a Kubernetes CronJob and write to DynamoDB

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,18 @@
+FROM node:22 AS build
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY tsconfig.json ./
+COPY src ./src
+RUN npm run build
+
+FROM node:22-slim
+WORKDIR /app
+ENV NODE_ENV=production
+ARG GIT_SHA=dev
+ENV GIT_SHA=${GIT_SHA}
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev
+COPY --from=build /app/dist ./dist
+USER node
+CMD ["node", "dist/main.js"]