docker healthcheck api thingy

server/src/globals/http.js

@@ -16,6 +16,20 @@ app.use(morgan('dev'));
 */
 app.use(PUBLIC_MEDIA_PREFIX, createMediaMtxProxy({ logger }));
 app.use(express.json());
+/*
+  Docker and the later lifecycle controller need one stable readiness result,
+  but they do not need administrator credentials or application details. Load
+  the health service only when the route is called so the global HTTP module
+  remains safe to initialize before the service graph during bootstrap.
+*/
+app.get('/health', async (_req, res) => {
+  const { getContainerHealth } = require('../services/healthService');
+  const health = await getContainerHealth();
+  res.status(health.healthy ? 200 : 503).json({
+    status: health.healthy ? 'healthy' : 'unhealthy',
+    checks: health.checks,
+  });
+});
 app.use(express.static(config.staticDir, { index: false }));
 
 const httpServer = http.createServer(app);