Verify: photos in a place album only load after scrolling or refresh

Summary

Reported in #618 alongside the slow album covers: photos inside a places album do not load on first open, only after scrolling or a page refresh. #2042 fixes the cover query counts but does not touch this.

Status

Needs verification on a current build. #2022 fixed the places list not rendering until the map reported bounds (#535). It is possible the reporter's symptom was that same defect, but it might also be the place album detail page (apps/frontend/src/routes/_protected/album/places.$id.tsx or the shared album detail component) not requesting photos until a scroll event.

To check

1. Open Places, click a place with many photos.
2. Do the photos render immediately, without scrolling?
3. If not, look at the album detail loader for a request gated on scroll position or on a ref that is null on first render, the same pattern as #535.

Close if it cannot be reproduced after #2022.