Move all code to old/ to prepare for Nuxt rewrite

old/app/api/events/route.ts

@@ -0,0 +1,31 @@
+import { addStream, deleteStream } from "./streams";
+
+export async function GET(request: Request) {
+	const encoder = new TextEncoder();
+	const source = request.headers.get("x-forwarded-for");
+	console.log(`starting event stream for ${source}`)
+	const stream = new TransformStream<string, Uint8Array>({
+		transform(chunk, controller) {
+			controller.enqueue(encoder.encode(chunk));
+		},
+		flush(controller) {
+			console.log(`finished event stream for ${source}`);
+			deleteStream(stream.writable);
+		},
+		// @ts-expect-error experimental API
+		cancel(reason) {
+			console.log(`cancelled event stream for ${source}`);
+			deleteStream(stream.writable);
+		}
+	})
+	addStream(stream.writable);
+	return new Response(
+		stream.readable,
+		{
+			headers: {
+				"Access-Control-Allow-Origin": "*",
+				"Content-Type": "text/event-stream",
+			}
+		}
+	);
+}