Auth fix + Registration Clarity (#3590)

* clarify auth flow

* k

* nit

* k

* fix typing

web/src/app/auth/login/EmailPasswordForm.tsx

@@ -19,11 +19,13 @@ export function EmailPasswordForm({
   shouldVerify,
   referralSource,
   nextUrl,
+  defaultEmail,
 }: {
   isSignup?: boolean;
   shouldVerify?: boolean;
   referralSource?: string;
   nextUrl?: string | null;
+  defaultEmail?: string | null;
 }) {
   const { user } = useUser();
   const { popup, setPopup } = usePopup();
@@ -34,7 +36,7 @@ export function EmailPasswordForm({
       {popup}
       <Formik
         initialValues={{
-          email: "",
+          email: defaultEmail || "",
           password: "",
         }}
         validationSchema={Yup.object().shape({

web/src/app/auth/signup/page.tsx

@@ -22,6 +22,10 @@ const Page = async (props: {
     ? searchParams?.next[0]
     : searchParams?.next || null;
 
+  const defaultEmail = Array.isArray(searchParams?.email)
+    ? searchParams?.email[0]
+    : searchParams?.email || null;
+
   // catch cases where the backend is completely unreachable here
   // without try / catch, will just raise an exception and the page
   // will not render
@@ -93,6 +97,7 @@ const Page = async (props: {
             isSignup
             shouldVerify={authTypeMetadata?.requiresVerification}
             nextUrl={nextUrl}
+            defaultEmail={defaultEmail}
           />
         </div>
       </>