list_media_files now LEFT JOINs storage.file_metadata and returns each
photo's pixel dimensions next to the sort date. The endpoint wraps FileDto
in a flattened PhotoDto carrying width/height, so the gallery can lay tiles
out at their true aspect ratio (justified layout) without a second per-file
metadata round-trip and without layout shift. FileItem gains optional
width/height. No change to FileDto or its other construction sites.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JW6ghFMDtnRYuYNzZhb47M
Backend: new GET /api/photos endpoint with cursor-based pagination that
queries image/video files sorted by EXIF captured_at (falling back to
created_at), joining file_metadata for sort dates.
Frontend: dense photo grid grouped by day with lazy-loaded thumbnails,
IntersectionObserver infinite scroll, multi-select with batch
download/delete, and a full-screen lightbox with prev/next navigation,
EXIF metadata display, and download/favorite/delete toolbar.
Includes navigation wiring, CSS (with dark theme), and i18n translations
for all 9 locales.