Reworks the Tags sidebar entry from an expandable list of tags into a
single leaf entry. Clicking it switches the timeline grouping mode to
"tag" — every tag becomes a sticky-headered group, with an "Untagged"
group at the bottom for photos with no tags. A photo with N tags
appears in N groups. Existing filters and sort still apply within each
group.
Backend
- list_photos eagerly loads Photo.tags via selectinload to avoid an
N+1 round-trip.
- Each photo in the list response now carries a `tags: [{id, name,
color}]` array. The route stops using PhotoListResponse strict
validation (returns a plain dict with the same shape plus the new
field) so we don't have to extend the pydantic schema.
Frontend
- Photo TS type gains an optional tags field plus a PhotoTagSummary
alias.
- filterStore: new groupBy: 'date' | 'tag' field, default 'date',
with setGroupBy + URL sync via ?group=tag. clearAll resets it.
- usePhotosQuery threads groupBy through filtersToParams (it's
client-side only but kept in the params for cache key
consistency).
- LeftSidebar Tags entry is now a leaf node (no children), shows the
total tag photo count as the badge, and is highlighted when
groupBy === 'tag'. Click → setGroupBy('tag') without touching
other filters. Selecting "All Photos" resets groupBy back to
'date' via clearAll.
- Timeline.buildItems gets a third "tag" branch:
- Iterates photos × tags into per-tag buckets
- Photos with no tags go into an "Untagged" bucket
- Tag groups sorted alphabetically; Untagged pinned to the end
- Headers + rows pushed in the same shape the date branch uses,
so the existing sticky-header overlay works for free
- Selection state is by photo id, so a photo appearing in multiple
groups stays consistently selected/highlighted across instances.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
dtoro
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