- Flag now detects Postgres SQLSTATE 23503 (foreign_key_violation) on
UpsertQuarantine and surfaces ErrTrackNotFound instead of a wrapped
generic. T8's handler can now return 404 track_not_found cleanly.
Constraint-name guard ('track' substring) keeps a future user_id FK from
mis-mapping to the same error.
- AdminQueueRow.AlbumTitle is now string (not *string). albums.title is
NOT NULL upstream; the empty-string-to-nil dance was answering a
nullability question that doesn't exist in the schema.
- Add TestFlag_NonexistentTrackReturnsErrTrackNotFound covering the new
branch.
bvandeusen
7a0bc1f815