Scaffold Next.js frontend with generated OpenAPI client and core views

Next.js (App Router) + React 19 + TypeScript + Tailwind v4, with shadcn-style UI primitives (Button, Input, Card, Label via cva/tailwind-merge). A typed API client is generated from the backend OpenAPI spec with openapi-typescript + openapi-fetch (npm run gen:api); the committed openapi.json/schema.d.ts are the snapshot.

Views: landing, login, register, tree list + create, and tree detail with person list + create. Auth rides the same-origin HttpOnly session cookie the backend sets (Caddy proxies /api/*), so no token handling in JS. Built as a standalone container. Mobile-first; next build is clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Justin Paul <justin@jpaul.me>

frontend/app/page.tsx

@@ -0,0 +1,25 @@
+import Link from "next/link";
+
+import { Button } from "@/components/ui/button";
+
+export default function Home() {
+  return (
+    <div className="space-y-6">
+      <div className="space-y-2">
+        <h1 className="text-3xl font-bold">Provenance</h1>
+        <p className="text-neutral-600">
+          Trace where you come from — your family and your land — with every fact linked to a
+          source, on infrastructure you control.
+        </p>
+      </div>
+      <div className="flex gap-3">
+        <Link href="/register">
+          <Button>Create an account</Button>
+        </Link>
+        <Link href="/login">
+          <Button variant="outline">Sign in</Button>
+        </Link>
+      </div>
+    </div>
+  );
+}