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duplicates: perceptual hash + soft-mark resolution + upload 409

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Adds pHash + dHash columns alongside the existing blake3 content_hash so
near-duplicates (re-encoded, resized, format-converted copies) become
queryable. /duplicates/{exact,perceptual} return groups; /duplicates/
{resolve,unresolve} flip a duplicate_of_hash soft-mark on losing rows
and union perceptual-only tag sets onto the survivor. The default
/photos listing filters duplicate_of_hash IS NULL so demoted siblings
stop cluttering the grid; include_duplicates=true opts back in for
Apollo's review modal. Upload now hashes bytes pre-write and returns
409 with the canonical sibling when a file's bytes already exist.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Cameron Cordes
2026-05-03 17:36:01 -04:00
parent 4340b164eb
commit 7584cd8792
14 changed files with 1852 additions and 1 deletions
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8
migrations/2026-05-03-000000_add_perceptual_hash/down.sql Normal file
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DROP INDEX IF EXISTS idx_image_exif_duplicate_of_hash;
DROP INDEX IF EXISTS idx_image_exif_dhash;
DROP INDEX IF EXISTS idx_image_exif_phash;
ALTER TABLE image_exif DROP COLUMN duplicate_decided_at;
ALTER TABLE image_exif DROP COLUMN duplicate_of_hash;
ALTER TABLE image_exif DROP COLUMN dhash_64;
ALTER TABLE image_exif DROP COLUMN phash_64;