Slate-v2 Cross-Repo Comparison And Scoreboard

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

Goal

Rebuild cross-repo comparison lanes in /Users/zbeyens/git/slate-v2 against /Users/zbeyens/git/slate, then publish the explicit replacement-gates scoreboard in the Slate v2 docs.

What Landed

• cross-repo local runner: /Users/zbeyens/git/slate-v2/scripts/run-cross-repo-local.sh
• replacement compatibility lane: /Users/zbeyens/git/slate-v2/playwright/integration/examples/replacement-compatibility.test.ts
• replacement placeholder benchmark: /Users/zbeyens/git/slate-v2/scripts/benchmarks/browser/replacement/placeholder.mjs
• replacement huge-document benchmark: /Users/zbeyens/git/slate-v2/scripts/benchmarks/browser/replacement/huge-document.mjs
• root package scripts for those lanes in /Users/zbeyens/git/slate-v2/package.json
• replacement scoreboard doc: /Users/zbeyens/git/plate-2/docs/slate-v2/replacement-gates-scoreboard.md

Verification

• yarn test:replacement:compat:local
• yarn bench:replacement:placeholder:local
• yarn bench:replacement:huge-document:local