The editor renders the server column in SOURCE order (reconcile_playlist pairs
each server track to its source row), so a reordered-but-same-membership playlist
read as '5 matched / in sync' when Navidrome's real order actually differed — the
reorder never reaching the server was invisible.
- compute_order_status() (pure, tested): matched tracks' server positions must be
strictly ascending in source order; uses RELATIVE order so missing/extra tracks
never false-flag. reconcile entries now carry server_index (additive).
- endpoint returns order_status + server_order (the server's actual sequence).
- editor shows an amber 'out of order' badge on the server column when membership
matches but sequence differs, opening a read-only modal of the real server order.
One-way: source order stays the source of truth; no server-side editing.
Tests reproduce the reported 'Real Love Baby moved to #2' case + guard against
false-flagging on missing/extra. The actual 'sync order' WRITE is a separate
follow-up (membership/extra semantics + live identity-preservation test pending).
ecd2500c39