Add System Monitoring Dashboard with Harbor CI/CD integration

Dockerfile

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+# Use official Node.js runtime as base image
+FROM node:18-alpine
+
+# Set working directory in container
+WORKDIR /app
+
+# Copy package files first (for better Docker layer caching)
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production && npm cache clean --force
+
+# Create non-root user for security
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nodejs -u 1001
+
+# Copy application code
+COPY src/ ./src/
+
+# Change ownership to nodejs user
+RUN chown -R nodejs:nodejs /app
+USER nodejs
+
+# 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/health', (res) => { process.exit(res.statusCode === 200 ? 0 : 1) })"
+
+# Start the application
+CMD ["npm", "start"]