Harden production auth for hackathon demo.

Configure Supabase redirect URLs, disable email confirmation on the remote
project, create profile and avatar rows on signup, and route new users to
/protected when a session is returned immediately.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/auth/sign-up-success/page.tsx

@@ -16,12 +16,13 @@ export default function Page() {
               <CardTitle className="text-2xl">
                 Thank you for signing up!
               </CardTitle>
-              <CardDescription>Check your email to confirm</CardDescription>
+              <CardDescription>
+                {`You're ready to go`}
+              </CardDescription>
             </CardHeader>
             <CardContent>
               <p className="text-sm text-muted-foreground">
-                You&apos;ve successfully signed up. Please check your email to
+                Your account is ready. You can sign in and start using Habit Pet.
-                confirm your account before signing in.
               </p>
             </CardContent>
           </Card>

components/sign-up-form.tsx

@@ -40,14 +40,18 @@ export function SignUpForm({
     }
 
     try {
-      const { error } = await supabase.auth.signUp({
+      const { data, error } = await supabase.auth.signUp({
         email,
         password,
         options: {
-          emailRedirectTo: `${window.location.origin}/protected`,
+          emailRedirectTo: `${window.location.origin}/auth/confirm?next=/protected`,
         },
       });
       if (error) throw error;
+      if (data.session) {
+        router.push("/protected");
+        return;
+      }
       router.push("/auth/sign-up-success");
     } catch (error: unknown) {
       setError(error instanceof Error ? error.message : "An error occurred");

supabase/config.toml

@@ -30,8 +30,14 @@ file_size_limit = "50MiB"
 
 [auth]
 enabled = true
-site_url = "http://127.0.0.1:3000"
+site_url = "https://cursor-hackathon-flame.vercel.app"
-additional_redirect_urls = ["http://127.0.0.1:3000/**", "http://localhost:3000/**"]
+additional_redirect_urls = [
+  "http://127.0.0.1:3000/**",
+  "http://localhost:3000/**",
+  "https://cursor-hackathon-flame.vercel.app/**",
+  "https://cursor-hackathon-*-harkamal-randhawas-projects.vercel.app/**",
+  "https://cursor-hackathon-*-recentrunner-harkamal-randhawas-projects.vercel.app/**",
+]
 jwt_expiry = 3600
 enable_refresh_token_rotation = true
 refresh_token_reuse_interval = 10

supabase/migrations/20260524010000_create_profile_on_signup.sql

@@ -0,0 +1,28 @@
+create or replace function public.handle_new_user()
+returns trigger
+language plpgsql
+security definer
+set search_path = public
+as $$
+begin
+  insert into public.profiles (id, display_name)
+  values (
+    new.id,
+    coalesce(new.raw_user_meta_data ->> 'display_name', split_part(new.email, '@', 1))
+  )
+  on conflict (id) do nothing;
+
+  insert into public.avatar_state (user_id)
+  values (new.id)
+  on conflict (user_id) do nothing;
+
+  return new;
+end;
+$$;
+
+drop trigger if exists on_auth_user_created on auth.users;
+
+create trigger on_auth_user_created
+  after insert on auth.users
+  for each row
+  execute function public.handle_new_user();