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>

scripts/docker-build.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# Docker build script for Black Canyon Tickets
+# Usage: ./scripts/docker-build.sh [version]
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Configuration
+IMAGE_NAME="bct-whitelabel"
+REGISTRY="${DOCKER_REGISTRY:-}" # Optional registry prefix
+VERSION="${1:-latest}"
+PLATFORM="${PLATFORM:-linux/amd64}"
+
+echo -e "${GREEN}🐳 Building Docker image for Black Canyon Tickets${NC}"
+echo -e "${YELLOW}Image: ${IMAGE_NAME}:${VERSION}${NC}"
+echo -e "${YELLOW}Platform: ${PLATFORM}${NC}"
+
+# Build the image
+echo -e "${GREEN}📦 Building Docker image...${NC}"
+if [ -n "$REGISTRY" ]; then
+    FULL_IMAGE_NAME="${REGISTRY}/${IMAGE_NAME}"
+else
+    FULL_IMAGE_NAME="${IMAGE_NAME}"
+fi
+
+docker build \
+    --platform "$PLATFORM" \
+    --tag "${FULL_IMAGE_NAME}:${VERSION}" \
+    --tag "${FULL_IMAGE_NAME}:latest" \
+    --build-arg BUILD_DATE="$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
+    --build-arg VCS_REF="$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')" \
+    --build-arg VERSION="$VERSION" \
+    .
+
+echo -e "${GREEN}✅ Docker image built successfully!${NC}"
+echo -e "${YELLOW}Image tags:${NC}"
+echo -e "  - ${FULL_IMAGE_NAME}:${VERSION}"
+echo -e "  - ${FULL_IMAGE_NAME}:latest"
+
+# Optional: Push to registry
+if [ "$2" = "--push" ] && [ -n "$REGISTRY" ]; then
+    echo -e "${GREEN}🚀 Pushing to registry...${NC}"
+    docker push "${FULL_IMAGE_NAME}:${VERSION}"
+    docker push "${FULL_IMAGE_NAME}:latest"
+    echo -e "${GREEN}✅ Images pushed to registry!${NC}"
+fi
+
+# Show image size
+echo -e "${GREEN}📊 Image information:${NC}"
+docker images "${FULL_IMAGE_NAME}" --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}\t{{.CreatedAt}}"
+
+echo -e "${GREEN}🎉 Build complete!${NC}"
+echo -e "${YELLOW}To run locally: docker run -p 3000:3000 ${FULL_IMAGE_NAME}:${VERSION}${NC}"
+echo -e "${YELLOW}Or use: docker-compose up${NC}"