/photos/exif is Apollo's photo-to-track matching feed, but unlike
/image/metadata and /photos/gps-summary it only carried the raw
new-contract triple. date_utc is NULL for unconverted rows and, by
design, forever for the drain's edited/exported floor (#120), so a
client reading date_utc alone would have to re-implement the
per-source legacy conventions to cover those rows: the re-anchoring
ADR-0001 says consumers delete, not migrate.
ExifSummary now carries:
- true_instant: date_view::row_true_instant (date_utc when converted,
else the per-source fallback), for instant-to-instant matching.
- wall_clock: date_view::row_wall_clock, rendered verbatim.
The row → wire mapping moves to ExifSummary::from_row so the tests
cover the real projection, including an unconverted row falling back
to the same instant and wall as its converted twin. Additive: legacy
fields are unchanged, so current clients see the same values.
The date_from/date_to filter still runs on the legacy column; that's
#152, which now explicitly covers /photos/exif too.
Unblocks Apollo #37.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cameron CordesandClaude Opus 5.5