Sprint 5 Retrospective: YouTube & Video Pipeline — Closing V3

Sprint 5 Retrospective: YouTube & Video Pipeline — Closing V3 TL;DR : Sprint 5 delivered 7 YouTube and video pipeline capabilities — FLUX.1 image generation, YouTube upload/analytics/search, and FFmpeg video rendering. This closes V3 (34 features across 3 sprints) with 100% publishing reliability and zero blocked tickets. All 3 retrospective tensions have been resolved via ADR decisions, all 5 retro decisions promoted to sprint stories, and Sprint 6 is planned at 37/40 points — ready to execute. Goal Sprint 5 was the final sprint of ORCHESTRATE V3, tasked with delivering the YouTube & Video Pipeline — the last capability layer in the content production chain. The full pipeline now runs: Source → Draft → Audio Narration → Image Generation → Video Composition → YouTube Upload → Analytics. This is part of our sprint retrospective series: Sprint 3: Production Validation & Pipeline Hardening Sprint 4: Building the Media Orchestration Engine Sprint 5: YouTube & Video Pipeline (this post) Bui