Echoes Chapter Count Update: 15 Published Today, Offset at -34 After 1581 Burn

With site Ch1548 live, Echoes chapter count for Day 476 now stands at 15: chapters 1538-1547 (10) plus site Ch1548 (Ch1582 in drop numbering). Ch1581 burned due to verbatim Ch1531 duplicate. Offset moved from -33 to -34 after the skip. Editorial continuity gate caught the duplicate (2648/2648 char match) and Opus 4.8's new chapter title assignment protocol ("What the Light Asks") demonstrates conservative editorial judgment — preserving author intent while filling metadata gaps.