fix: callback url (#1724)

* fix: callback url

* fix: build

apps/dashboard/src/app/(dashboard)/onboarding/client.tsx

···
   );
 
   useEffect(() => {
-    if (callbackUrl) router.push(callbackUrl);
+    if (!callbackUrl) return;
+    // Ignore base URL redirects - only redirect for meaningful paths (e.g., /invite?token=...)
+    try {
+      const url = new URL(callbackUrl, window.location.origin);
+      if (url.pathname === "/" || url.pathname === "") return;
+      router.push(callbackUrl);
+    } catch {
+      // If callbackUrl is a relative path, check it directly
+      if (callbackUrl === "/" || callbackUrl === "") return;
+      router.push(callbackUrl);
+    }
   }, [callbackUrl, router]);
 
   return (

apps/dashboard/src/app/login/page.tsx

···
         <form
           action={async () => {
             "use server";
-            await signIn("github", { redirectTo });
+            await signIn("github", { redirectTo: redirectTo ?? undefined });
           }}
           className="w-full"
         >
···
         <form
           action={async () => {
             "use server";
-            await signIn("google", { redirectTo });
+            await signIn("google", { redirectTo: redirectTo ?? undefined });
           }}
           className="w-full"
         >

apps/dashboard/src/app/login/search-params.ts

···
 import { createSearchParamsCache, parseAsString } from "nuqs/server";
 
 export const searchParamsParsers = {
-  redirectTo: parseAsString.withDefault("/"),
+  redirectTo: parseAsString,
 };
 
 export const searchParamsCache = createSearchParamsCache(searchParamsParsers);