add endpoint for oembed; restyle gifv; skeleton for websocket

app/lib/ws.ts

@@ -0,0 +1,20 @@
+import WebSocket from "ws";
+
+const wsPort = normalizePort(process.env.EBWSPORT || "3001");
+
+function normalizePort(val: string) {
+    const port = parseInt(val, 10);
+
+    if (isNaN(port)) {
+        return parseInt(val);
+    }
+
+    if (port >= 0) {
+        return port;
+    }
+}
+
+const wss = new WebSocket.Server({port: wsPort});
+
+export { wss };
+