Mission Run Overview
Mission Run: Verdict-Seam Write-Side Unification
Give a work package's review verdict exactly one authority — the event log — by flipping the review-cycle write seam to the coordination partition, retiring the frontmatter read-path, and binding every reader to the reducer snapshot.
PR #3211 left the review-cycle verdict seam a dual-store: the read side follows the coordination partition while the write side is still pinned to the primary partition, so ~16 frontmatter readers survive as a fallback and the two ends of a review decision can consult different surfaces. This mission completes the write-side unification, collapses the dual-store to a single event authority, extends single-authority to the dashboard readers, and greens the carry-red gate-artifact and concurrency defects that are symptoms of the split.