fix(auth): fix AuthForm imports and add sign-up callbackURL

Replace @/src/components/ aliases with @/components/. Add callbackURL support to sign-up page for post-registration redirect.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/app/[locale]/sign-up/page.tsx

@@ -0,0 +1,20 @@
+import { AuthForm } from '@/components/auth/AuthForm';
+import { routes } from '@/lib/routes';
+
+type SignUpPageProps = {
+  searchParams: Promise<{
+    callbackURL?: string | string[];
+  }>;
+};
+
+export default async function SignUpPage({ searchParams }: SignUpPageProps) {
+  const params = await searchParams;
+  const callbackURL = Array.isArray(params.callbackURL)
+    ? params.callbackURL[0]
+    : params.callbackURL;
+  const redirectPath = callbackURL?.startsWith('/')
+    ? callbackURL
+    : routes.private.dashboard;
+
+  return <AuthForm mode="sign-up" redirectPath={redirectPath} />;
+}

src/components/auth/AuthForm.tsx

@@ -26,17 +26,17 @@ import {
   CardContent,
   CardHeader,
   CardTitle,
-} from '@/src/components/ui/card';
+} from '@/components/ui/card';
 import {
   InputGroup,
   InputGroupAddon,
   InputGroupInput,
-} from '@/src/components/ui/input-group';
+} from '@/components/ui/input-group';
 import {
   Tooltip,
   TooltipContent,
   TooltipTrigger,
-} from '@/src/components/ui/tooltip';
+} from '@/components/ui/tooltip';
 
 import { Spinner } from '../ui/spinner';