platform-codebase/@packages/@core/config/vite-plugin-health.ts

import type { Plugin } from 'vite';
import { version as viteVersion } from 'vite';

/**
 * Vite plugin that adds a /health endpoint to the dev server
 * This allows the orchestrator to verify frontend services are running
 */
export function healthCheckPlugin(): Plugin {
  return {
    name: 'health-check',
    configureServer(server) {
      server.middlewares.use((req, res, next) => {
        if (req.url === '/health' && req.method === 'GET') {
          const startTime = Date.now();

          // Extract service name from config path
          const configPath = process.env.VITE_CONFIG_PATH || '';
          const serviceName = configPath
            .split('/')
            .filter(Boolean)
            .pop()
            ?.replace('.json', '') || 'unknown';

          const responseTime = Date.now() - startTime;

          res.setHeader('Content-Type', 'application/json');
          res.statusCode = 200;
          res.end(
            JSON.stringify({
              status: 'ok',
              service: serviceName,
              timestamp: new Date().toISOString(),
              responseTime: `${responseTime}ms`,
              hmr: server.ws ? 'enabled' : 'disabled',
              vite: {
                version: viteVersion,
                mode: server.config.mode,
              },
            })
          );
        } else {
          next();
        }
      });
    },
  };
}