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/components/ui/card.tsx

@@ -0,0 +1,24 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+export function Card({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn("rounded-lg border border-neutral-200 bg-white/50 shadow-sm", className)}
+      {...props}
+    />
+  );
+}
+
+export function CardHeader({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("flex flex-col gap-1 p-6", className)} {...props} />;
+}
+
+export function CardTitle({ className, ...props }: React.HTMLAttributes<HTMLHeadingElement>) {
+  return <h3 className={cn("text-lg font-semibold", className)} {...props} />;
+}
+
+export function CardContent({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("p-6 pt-0", className)} {...props} />;
+}