feat: add production deployment and runtime safeguards

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:24-bookworm-slim
+
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev
+
+COPY src ./src
+COPY scripts ./scripts
+COPY public ./public
+COPY prospeccao/config.json ./prospeccao/config.json
+
+RUN mkdir -p /app/data/runtime /app/data/exports /app/data/backups
+
+EXPOSE 3910
+
+CMD ["npm", "start"]