Replaces the old "untagged" sentinel tag with a proper per-file workflow
status: needs_review starts true on upload/import and is cleared by an
explicit action (no auto-clear on tagging). Surfaced as a filter token
(r=1 needs review, r=0 done) so it combines with tag/MIME conditions, and
toggled via POST /files/bulk/review (single id or many, edit-ACL enforced,
audit-logged as file_review).
needs_review lives on data.files (column added to the original 003 migration,
partial index in 006, action type seeded in 007).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Make data.files.exif column nullable (was NOT NULL but service passes nil
for files without EXIF data, causing a constraint violation on upload)
- FileRepo.Create: include id in INSERT so disk storage path and DB record
share the same UUID (previously DB generated its own UUID, causing a mismatch)
- Integration test: use correct filter DSL format {t=<uuid>} instead of tag:<uuid>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>