Slate v2 Roadmap Slate-browser Conditionalization

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

Goal

• Remove the last stale "next move" wording that still sounded like active queue ownership instead of conditional follow-on.

Finding

• final-synthesis.md still framed Phase 8 package shaping as the front-of-queue risk.
• overview.md, slate-browser/overview.md, and slate-browser/next-system-move.md still described a concrete next move without saying it was conditional.

Patch

• Reframe the old Phase 8 risk as landed historical work.
• Reframe the Slate-browser next-move docs as targeted follow-on only if that package work reopens.

Verification

• pnpm exec prettier --check /Users/zbeyens/git/plate-2/docs/slate-v2/archive/final-synthesis.md /Users/zbeyens/git/plate-2/docs/slate-v2/overview.md /Users/zbeyens/git/plate-2/docs/slate-browser/overview.md /Users/zbeyens/git/plate-2/docs/slate-browser/next-system-move.md /Users/zbeyens/git/plate-2/docs/plans/2026-04-07-slate-v2-roadmap-slate-browser-conditionalization.md
• grep confirms the stale active-next-move wording is gone from the target docs