Fix zoomed photo preview overflowing its box; cache-bust crop assets

Reported: on the session edit page, the photo preview rendered larger
than the rest of the form and overlapped the upload button below it.

Cause: transform:scale(zoom) only affects paint, not layout — the
preview's wrapper (.photo-preview-wrap, .novena-hero-photo-wrap) never
had overflow:hidden, so a zoomed-in crop visually spilled outside its
intended max-height/max-width box instead of being clipped to it. Cards
elsewhere were already fine (.rosary-card already has overflow:hidden).

Also: photo-crop.js/css had no cache-busting query string on any of their
three <script>/<link> tags, so a browser that loaded a page before this
feature's most recent update could easily keep serving a stale cached
copy indefinitely — added ?v=2 to force a refetch of this round's fix.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

assets/css/setup.css

@@ -441,6 +441,8 @@ input:focus, select:focus {
    ---------------------------------------------------------------- */
 .photo-preview-wrap {
     margin-bottom: 8px;
+    overflow: hidden;
+    border-radius: 6px;
 }
 .photo-preview {
     max-height: 120px;