Replace the install-ux-v2 manifest at docs/MISSION-MANIFEST.md with a top-level MVP rollup that tracks workstream-level missions instead of sub-mission scope. install-ux-v2 substantively shipped (IUV-M03 via PR #446 + releases 0.0.27 → 0.0.29) and is archived under docs/archive/missions/install-ux-v2-20260405/ with status corrected to complete. The new MVP manifest: - Names federation v1 as workstream W1 (planning-complete, 7 milestones, manifest at docs/federation/MISSION-MANIFEST.md, issues #460-#466) - Encodes three-surface parity (webUI/TUI/CLI) as cross-cutting requirement MVP-X1 so it cannot be silently dropped - Pre-stages additional workstreams (PRD-derived candidates) without committing execution capacity to them — scope creep is named and accommodated, not denied - Preserves Phase 0–8 history from sessions 1-14 in the scratchpad as prior execution context, not as the active control plane docs/TASKS.md becomes a rollup pointing at workstream task files; workers operating inside W1 read docs/federation/TASKS.md as their primary task source. Session 15 entry appended to docs/scratchpads/mvp-20260312.md (the existing scratchpad, active since 2026-03-13). Co-Authored-By: Claude Opus 4.7 <[email protected]>