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examples/basic-app/app/middleware/logger.ts

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+import { requestLogger } from "@wrnexus/core";
+import { env } from "../env.ts"; // validated at startup (throws on misconfiguration)
+
+// Structured request logging: pretty in dev, JSON in production. Runs before
+// every page and API route; the request id is stored on ctx.locals.requestId.
+export default requestLogger({ format: env.NODE_ENV === "production" ? "json" : "pretty" });