Slate v2 Phase 10 Default Recommendation

Supporting plan. For current queue and roadmap truth, see master-roadmap.md.

Goal

Make the release-readiness docs say exactly:

• what surface is safe to recommend by default
• what is real but advanced
• what remains comparison-only or selective follow-on only

Scope

• /Users/zbeyens/git/slate-v2/Readme.md
• /Users/zbeyens/git/slate-v2/docs/general/replacement-candidate.md
• /Users/zbeyens/git/plate-2/docs/slate-v2/replacement-gates-scoreboard.md
• top-level roadmap sync in plate-2

Constraints

• no new package/API claims
• no fake “full replacement” phrasing
• keep the recommendation fast to scan

Progress

• added the default / advanced / comparison-only recommendation to:
  • /Users/zbeyens/git/slate-v2/Readme.md
  • /Users/zbeyens/git/slate-v2/docs/general/replacement-candidate.md
  • /Users/zbeyens/git/plate-2/docs/slate-v2/replacement-gates-scoreboard.md
• synced the Phase 10 roadmap stack so this is recorded as a landed release-readiness slice
• verification:
  • yarn prettier --check /Users/zbeyens/git/slate-v2/Readme.md /Users/zbeyens/git/slate-v2/docs/general/replacement-candidate.md
  • pnpm exec prettier --check /Users/zbeyens/git/plate-2/docs/slate-v2/archive/package-end-state-roadmap.md /Users/zbeyens/git/plate-2/docs/slate-v2/archive/cohesive-program-plan.md /Users/zbeyens/git/plate-2/docs/slate-v2/overview.md /Users/zbeyens/git/plate-2/docs/slate-v2/archive/final-synthesis.md /Users/zbeyens/git/plate-2/docs/slate-v2/replacement-gates-scoreboard.md /Users/zbeyens/git/plate-2/docs/plans/2026-04-07-slate-v2-phase10-default-recommendation.md