fix(webapp): show conform v1 server errors in purchase modals

The schedules and branches add-on purchase modals detected conform
responses with "intent" in fetcher.data, but conform v1's
submission.reply() returns a status field, not intent, so lastResult was
always undefined and server-side errors never rendered. Switch the guard
to "status" in fetcher.data, matching the rest of the migration.

Author: carderne

apps/webapp/app/components/schedules/PurchaseSchedulesModal.tsx

@@ -54,7 +54,7 @@ export function PurchaseSchedulesModal({
   const showSelfServe = useShowSelfServe();
   const fetcher = useFetcher();
   const lastSubmission =
-    fetcher.data && typeof fetcher.data === "object" && "intent" in fetcher.data
+    fetcher.data && typeof fetcher.data === "object" && "status" in fetcher.data
       ? fetcher.data
       : undefined;
   const [form, { amount }] = useForm({

apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.branches/route.tsx

@@ -674,7 +674,7 @@ function PurchaseBranchesModal({
   const showSelfServe = useShowSelfServe();
   const fetcher = useFetcher();
   const lastSubmission =
-    fetcher.data && typeof fetcher.data === "object" && "intent" in fetcher.data
+    fetcher.data && typeof fetcher.data === "object" && "status" in fetcher.data
       ? fetcher.data
       : undefined;
   const [form, { amount }] = useForm({