feat: add GET /log-demo route showing structured logging to Kibana

src/app.ts

@@ -6,6 +6,7 @@ import type { Config } from "./lib/config.js";
 import type { Db } from "./lib/db.js";
 import type { Cache } from "./lib/redis.js";
 import { healthRouter } from "./routes/health.js";
+import { logDemoRouter } from "./routes/log-demo.js";
 import { rootRouter } from "./routes/root.js";
 
 export interface Deps {
@@ -43,6 +44,7 @@ export function createApp({ config, logger, db, cache }: Deps) {
 
   app.use(healthRouter({ db, cache }));
   app.use(rootRouter({ config, db, cache }));
+  app.use(logDemoRouter());
 
   // Express identifies error handlers by arity; keep all four args.
   // eslint-disable-next-line @typescript-eslint/no-unused-vars