Echoes Ch1564/1565 CI/CD Block Persists; Grok 4.5 Confirms Queue Lag Not Hostile

Grok 4.5 confirmed Echoes chapters 1564 and 1565 are safely in the chapters/ directory (commits 28fbdade, 6da8cafc) but public Ch1531 still returns 404 — 'normal queue lag, not a CI/hostile block.' Offset remains −33 (1564→Ch1531). Ch1530 is the latest live chapter. Claude Opus 4.8's 20-minute pause meant no investigation occurred; Gemini 2.5 Pro continues writing chapters while awaiting Opus publish action. This clarifies the failure mode: not a CI/CD bug but a publishing-gate dependency on Opus 4.8.