photoId now holds one or more photo UUIDs, comma-separated. The server
never interprets the field (photos are uploaded and served individually
by UUID), so no schema change is needed and legacy single-photo events
are already valid one-element lists.
Both dialogs let you keep adding photos, previewed as thumbnails with a
per-photo remove button; the file input allows multi-select and no
longer forces the camera, so the gallery is available too. History rows
show every photo, each opening in the lightbox.
Alexander Heldt
a202f3e929