new node.js impl., removed old stuff

email-worker-nodejs/health.ts

@@ -0,0 +1,48 @@
+/**
+ * Health check HTTP server
+ *
+ * Provides a simple /health endpoint for Docker healthcheck
+ * and monitoring. Returns domain list and feature flags.
+ */
+
+import { createServer, type Server } from 'node:http';
+import { log } from './logger.js';
+
+export function startHealthServer(
+  port: number,
+  domains: string[],
+  getStats?: () => any,
+): Server {
+  const server = createServer((_req, res) => {
+    const stats = getStats?.() ?? {};
+
+    const payload = {
+      status: 'healthy',
+      worker: 'unified-email-worker-ts',
+      version: '2.0.0',
+      domains,
+      domainCount: domains.length,
+      features: {
+        bounce_handling: true,
+        ooo_replies: true,
+        forwarding: true,
+        blocklist: true,
+        prometheus_metrics: true,
+        lmtp: false,
+        legacy_smtp_forward: false,
+      },
+      stats,
+      uptime: process.uptime(),
+      timestamp: new Date().toISOString(),
+    };
+
+    res.writeHead(200, { 'Content-Type': 'application/json' });
+    res.end(JSON.stringify(payload, null, 2));
+  });
+
+  server.listen(port, () => {
+    log(`Health check on port ${port}`);
+  });
+
+  return server;
+}