Website: Next.js app for accounts, linking, who's online, device sign-in and the console

apps/web: Next.js 16 (App Router), Tailwind 4 and shadcn/ui, light and dark from the system. Pages render on the
server and call the API with Eden Treaty (typed by @t5de/api), forwarding the visitor's cookie; forms use server
actions; sign-up, sign-in and sign-out use Better Auth's React client. /api is rewritten to the API so its cookies
are first-party. Who's online follows the API's event stream (Next's gzip is off: it held the stream back).
Standalone output with a Dockerfile; deploys to Vercel as is.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/components/copy-button.tsx

@@ -0,0 +1,23 @@
+"use client";
+import { CheckIcon, CopyIcon } from "lucide-react";
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+
+export function CopyButton({ text }: { text: string }) {
+  const [copied, setCopied] = useState(false);
+  return (
+    <Button
+      type="button"
+      variant="outline"
+      size="sm"
+      onClick={async () => {
+        await navigator.clipboard.writeText(text);
+        setCopied(true);
+        setTimeout(() => setCopied(false), 2000);
+      }}
+    >
+      {copied ? <CheckIcon /> : <CopyIcon />}
+      {copied ? "Copied" : "Copy"}
+    </Button>
+  );
+}