fix(01-02): move onboarding/pet outside (app) group — breaks redirect loop

src/app/onboarding/pet/page.tsx

@@ -1,19 +1,19 @@
+import { auth } from "@clerk/nextjs/server";
+import { redirect } from "next/navigation";
+
 /**
  * Onboarding pet page — /onboarding/pet
  *
- * Landing page shown when an authenticated owner has no pets yet.
- * The app shell layout.tsx redirects here when pets.length === 0.
+ * Shown when an authenticated owner has no pets yet.
+ * Lives OUTSIDE the (app) layout group to avoid the redirect loop:
+ * app layout sees 0 pets → redirects here → this page has no pet check.
  *
- * UI-SPEC: Pet Profile Screens — Create First Pet (onboarding)
- * - Heading: "Add your first pet" (text-xl font-semibold)
- * - Subheading: "Your pet will be their own star on OnlyPets." (text-sm text-muted-foreground)
- * - PetForm placeholder (wired in Plan 03)
- *
- * This page is intentionally outside the (app) layout's pet-list check —
- * owners are redirected HERE when they have no pets, so the shell must
- * render without requiring an existing pet.
+ * PetForm is wired in Plan 03.
  */
-export default function OnboardingPetPage() {
+export default async function OnboardingPetPage() {
+  const { userId } = await auth();
+  if (!userId) redirect("/log-in");
+
   return (
     <main className="min-h-screen flex items-center justify-center bg-background px-4">
       <div className="w-full max-w-[512px]">