Initial commit: Korea Tourism Agency website with AdminJS

- Full-stack Node.js/Express application with PostgreSQL
- Modern ES modules architecture
- AdminJS admin panel with Sequelize ORM
- Tourism routes, guides, articles, bookings management
- Responsive Bootstrap 5 frontend
- Docker containerization with docker-compose
- Complete database schema with migrations
- Authentication system for admin panel
- Dynamic placeholder images for tour categories

Dockerfile.prod

@@ -0,0 +1,44 @@
+FROM node:18-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production
+
+# Copy application files
+COPY . .
+
+# Remove development files
+RUN rm -rf .git .gitignore docker-compose.yml Dockerfile README.md
+
+# Final stage
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Create non-root user
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S tourism -u 1001
+
+# Copy from builder
+COPY --from=builder --chown=tourism:nodejs /app .
+
+# Create uploads directory
+RUN mkdir -p public/uploads && chown tourism:nodejs public/uploads
+
+# Switch to non-root user
+USER tourism
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node -e "require('http').get('http://localhost:3000', (res) => { process.exit(res.statusCode === 200 ? 0 : 1) })"
+
+# Start application
+CMD ["npm", "start"]