feat: Add Docker containerization for consistent deployment

- Multi-stage Dockerfile with Node.js 20 Alpine base
- Production and development docker-compose configurations
- Health check API endpoint for container monitoring
- Build and deployment scripts with versioning support
- Port 3000 configuration for nginx compatibility
- Non-root user and security hardening
- Resource limits and logging configuration
- Package.json scripts for Docker operations

This eliminates dependency conflicts and provides reproducible deployments.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Dockerfile

@@ -0,0 +1,61 @@
+# Multi-stage build for Black Canyon Tickets
+# Stage 1: Build stage
+FROM node:20-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install all dependencies (including dev dependencies for build)
+RUN npm ci
+
+# Copy source code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Stage 2: Production stage
+FROM node:20-alpine AS production
+
+# Install security updates
+RUN apk update && apk upgrade && apk add --no-cache dumb-init
+
+# Create app user for security
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S astro -u 1001
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install only production dependencies
+RUN npm ci --only=production && npm cache clean --force
+
+# Copy built application from builder stage
+COPY --from=builder --chown=astro:nodejs /app/dist ./dist
+
+# Copy additional necessary files
+COPY --chown=astro:nodejs setup-schema.js ./
+COPY --chown=astro:nodejs setup-super-admins.js ./
+
+# Create logs directory
+RUN mkdir -p logs && chown astro:nodejs logs
+
+# Switch to non-root user
+USER astro
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node -e "const http=require('http');const options={hostname:'localhost',port:3000,path:'/api/health',timeout:2000};const req=http.request(options,(res)=>{process.exit(res.statusCode===200?0:1)});req.on('error',()=>{process.exit(1)});req.end();" || exit 1
+
+# Start the application with dumb-init for proper signal handling
+ENTRYPOINT ["dumb-init", "--"]
+CMD ["node", "./dist/server/entry.mjs"]