fix: follow undergraduate login links and capture live history URLs

mobile/lib/features/school/undergraduate/page_probe.dart

@@ -67,9 +67,10 @@ class UndergraduateFragment {
 }
 
 class UndergraduatePageEvidence {
-  const UndergraduatePageEvidence(this.authenticated, this.pages);
+  const UndergraduatePageEvidence(this.authenticated, this.pages, this.url);
   final bool authenticated;
   final List<UndergraduateFragment> pages;
+  final Uri url;
   static UndergraduatePageEvidence decode(Object raw, Uri current) {
     try {
       dynamic value = raw;
@@ -116,6 +117,7 @@ class UndergraduatePageEvidence {
       return UndergraduatePageEvidence(
         value['authenticated'] == true,
         List.unmodifiable(result),
+        current,
       );
     } on FormatException {
       rethrow;