Add Dockerfile, remove DB dump for security

.dockerignore

@@ -0,0 +1,8 @@
+node_modules
+dist
+.git
+*.png
+*.jpg
+*.sql
+.replit
+attached_assets

Dockerfile

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+# Build stage
+FROM node:20-bookworm-slim AS builder
+WORKDIR /app
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    python3 make g++ pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+COPY package*.json ./
+RUN npm install --no-audit --no-fund
+COPY . .
+RUN npm run build
+
+# Runtime stage
+FROM node:20-bookworm-slim
+WORKDIR /app
+ENV NODE_ENV=production
+COPY package*.json ./
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/dist ./dist
+EXPOSE 5000
+CMD ["node", "dist/index.cjs"]