Add paginated panel loading

TESTING.md

@@ -99,6 +99,20 @@ xcrun simctl launch booted de.rfc1437.gotcha
 - [ ] Pull past the top of Home, repository lists, issue lists, pull lists,
       commit history, changed files, issue details, pull details, and diffs.
       The native refresh control appears, reloads data, and disappears.
+- [ ] On accounts/repositories with more than 30 results, Home activity,
+      repositories, issues, pull requests, milestones, milestone contents,
+      commit history, and pull-request files initially show one page plus a
+      **Pull up or tap to load more**
+      footer. Pull upward past the bottom and verify the footer changes to a
+      native loading indicator, the next page appends without duplicates, and
+      the footer disappears after the final page.
+- [ ] Tap the load-more footer as an accessibility alternative and repeat while
+      VoiceOver is running. It announces loading, ignores repeated activation
+      while a request is active, preserves the current scroll position, and
+      allows retry after an error.
+- [ ] Pull down to refresh after loading multiple pages. The content resets to
+      the new first page, filtering/branch changes also reset pagination, and
+      switching History/Files never shows a stale load-more footer.
 - [ ] Tap a row, scroll its detail, and use both the navigation-bar Back button
       and the left-edge interactive swipe to return.
 - [ ] From a list scrolled well away from the top, open a detail and go Back.