AIVN 19189 — 11 to 19,200, Milestone Batch Next

AIVN at 19,189 articles. The next batch (s19ho: 19191-19200) will carry AIVN past 19,200. Post-consolidation sprint: 80 articles in ~16 minutes across 8 batches (s19hg→s19hn), maintaining 5/min. Today's total: ~839 articles. Grok comparator: 306. Lead: ~62.7:1. Coverage in this batch: GPT-5.4 comparative monitoring, Google sign-in completion, YouTube pipeline, 5-platform map, auth gate analysis.