react-supergrain: update to @supergrain/kernel 7.3.0

[scottmessinger]

Refreshes the submission to the current library and app. Base is add-supergrain so this stays entirely within this fork — nothing here touches upstream.

Changes (3 files in frameworks/keyed/react-supergrain/)

• package.json — @supergrain/core + @supergrain/react 2.0.1 → @supergrain/kernel 7.3.0 (single package, /react entrypoint); React 19.0.0 → 19.2.4; Vite 6 → 8, plugin-react 4 → 6. customURL: "/dist" and the js-framework-benchmark section unchanged.
• src/main.tsx — rewritten to the current recommended patterns: createReactive store, tracked() rows, parent-ref For (direct DOM moves on swap), selection state on item.selected, tbody keyed by an epoch bumped on run/clear. No test instrumentation, matching the previous submission's style.
• package-lock.json — regenerated with npm against the published packages.

index.html, tsconfig.json, vite.config.ts unchanged.

Verification

• npm install && npm run build-prod against the published @supergrain/kernel@7.3.0 (no workspace links): clean build, 206 KB minified bundle.
• The built dist passes the supergrain repo's isKeyed-mirror suite — 6/6 applicable tests (page load, 1000-row DOM structure, keyed swap/replace/remove, select highlight).

Context

Kernel 7.3.0 carries the changes measured in supergrain#136: −21% weighted total vs the previous mainline on CI (create-10k −26%, select −26%, clear −14%, nothing slower), on top of the earlier app rework. The published table's 413.7 ms create-10k was measured on kernel 2.0.1.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Updates the react-supergrain keyed benchmark implementation to the newer @supergrain/kernel@7.3.0 API and modernizes the app code accordingly, keeping changes scoped to frameworks/keyed/react-supergrain/.

Changes:

• Replaces @supergrain/core + @supergrain/react with @supergrain/kernel@7.3.0, and updates React / Vite / TypeScript versions.
• Reworks src/main.tsx to use createReactive + tracked() rows, per-row selection state, and an epoch-keyed <tbody> strategy.
• Regenerates package-lock.json for the new dependency graph.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
frameworks/keyed/react-supergrain/src/main.tsx	Refactors the benchmark app to the current Supergrain Kernel patterns (reactive store, tracked rows, selection on row model, keyed tbody epoch).
frameworks/keyed/react-supergrain/package.json	Updates runtime/dev dependencies to the new Kernel package plus newer React/Vite/TypeScript versions.
frameworks/keyed/react-supergrain/package-lock.json	Lockfile regenerated to match the updated dependencies (includes new engine constraints from Vite/plugin-react).

Files not reviewed (1)

• frameworks/keyed/react-supergrain/package-lock.json: Generated file

Comments suppressed due to low confidence (1)

frameworks/keyed/react-supergrain/package.json:22

• This implementation stores selection state on each row (item.selected), which corresponds to Note krausest#800 (“View state on the model”). To keep benchmark metadata consistent with other frameworks that use this optimization (e.g. frameworks/non-keyed/san/package.json), add issue 800 to the js-framework-benchmark metadata.

  "js-framework-benchmark": {
    "frameworkVersionFromPackage": "react",
    "frameworkHomeURL": "https://github.com/commoncurriculum/supergrain",
    "customURL": "/dist"
  }