A "Find duplicates" button in the Photos header opens a review of every
set of files that share a content hash. Each set shows its copies side by
side with a Keep toggle; the copy in the most albums, then in the larger
RAW+JPEG group, then the oldest, is kept by default, and a set can't lose
its last kept copy. The copies not kept move to Trash one file at a time.
- core: Db::photo_duplicates, Request::PhotoDuplicates, and a files_only
flag on TrashNodes (defaults to false, so old clients still trash whole
groups).
- core: deleting a group's representative now clears the group key of its
remaining files instead of leaving them pointing at a missing uid.
- fuse: handlers for both requests.
The app, the tray and the search prompt route every user-visible string
through GNU gettext in the `pdfs` text domain, with named placeholders and
plural forms. po/ holds the template, update and build scripts, and catalogs
for de, en_GB, es, fr, it, nl, pl and pt_BR. Preferences gains a Language row
that overrides the system language from the next start (config `language`).
Packages compile the catalogs into /usr/share/locale and the desktop files
carry translated descriptions and keywords. docs/TRANSLATING.md describes
the workflow.