chore(start): update Rsbuild to v2.0.0-rc.3 and remove workaround

[chenjiahan]

• Update @rsbuild/core and @rsbuild/plugin-react to 2.0.0-rc.3
• Remove the chunkSplit.strategy workaround from e2e cases

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[Copilot]

Pull request overview

Updates the repo’s Rsbuild-based Start e2e fixtures and related packages to use Rsbuild v2.0.0-rc.3, and removes the previously-required chunkSplit.strategy workaround from e2e configs.

Changes:

• Bump @rsbuild/core / @rsbuild/plugin-react usage in Rsbuild e2e projects to 2.0.0-rc.3.
• Remove performance.chunkSplit.strategy workaround blocks from Rsbuild e2e configs.
• Refresh lockfile and add @rsbuild/core devDependency in some Start packages for local development.

Reviewed changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Lockfile refresh for Rsbuild/Rspack updates and new/updated e2e importers (contains a problematic local link: entry).
packages/vue-start/package.json	Adds @rsbuild/core devDependency and reorders deps/peers.
packages/solid-start/package.json	Adds @rsbuild/core devDependency and reorders deps.
packages/react-start/package.json	Reorders deps and adds @rsbuild/core devDependency (currently set to ^2.0.0-rc.2).
e2e/vue-start/basic-rsbuild/rsbuild.config.ts	Removes chunkSplit.strategy workaround.
e2e/vue-start/basic-rsbuild/package.json	Updates @rsbuild/core to 2.0.0-rc.3.
e2e/solid-start/basic-rsbuild/rsbuild.config.ts	Removes chunkSplit.strategy workaround.
e2e/solid-start/basic-rsbuild/package.json	Updates @rsbuild/core to 2.0.0-rc.3.
e2e/react-start/rsc-rsbuild/rsbuild.config.ts	Removes chunkSplit.strategy workaround comment/config.
e2e/react-start/rsc-rsbuild/package.json	Updates @rsbuild/core and @rsbuild/plugin-react to 2.0.0-rc.3.
e2e/react-start/basic-rsbuild/rsbuild.config.ts	Removes chunkSplit.strategy workaround comment/config.
e2e/react-start/basic-rsbuild/package.json	Updates @rsbuild/core and @rsbuild/plugin-react to 2.0.0-rc.3.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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[github-actions]

Bundle Size Benchmarks

• Commit: 0166fe8ba0f3
• Measured at: 2026-04-15T07:58:00.459Z
• Baseline source: history:f7f00250f39c
• Dashboard: bundle-size history

Scenario	Current (gzip)	Delta vs baseline	Raw	Brotli	Trend
react-router.minimal	87.57 KiB	+226 B (+0.25%)	275.82 KiB	76.10 KiB	▁▁▁▁▁▁▁▁▁▁▁█
react-router.full	90.84 KiB	+214 B (+0.23%)	287.12 KiB	79.00 KiB	▂▁▁▁▁▁▁▁▁▂▂█
solid-router.minimal	35.60 KiB	+95 B (+0.26%)	107.36 KiB	31.94 KiB	▃▁▁▁▁▁▁▁▁▁▁█
solid-router.full	40.07 KiB	+89 B (+0.22%)	120.90 KiB	35.96 KiB	▂▁▁▁▁▁▁▂▂▂▂█
vue-router.minimal	53.46 KiB	+165 B (+0.30%)	153.16 KiB	48.00 KiB	▂▁▁▁▁▁▁▁▁▁▁█
vue-router.full	58.36 KiB	+163 B (+0.27%)	168.62 KiB	52.25 KiB	▂▁▁▁▁▁▁▁▁▁▁█
react-start.minimal	101.96 KiB	+198 B (+0.19%)	323.81 KiB	88.14 KiB	▁▁▁▁▁▁▁▁▁▂▂█
react-start.full	105.39 KiB	+183 B (+0.17%)	334.16 KiB	91.16 KiB	▂▁▁▁▁▁▁▁▁▂▂█
solid-start.minimal	49.62 KiB	+106 B (+0.21%)	153.24 KiB	43.76 KiB	▃▁▁▁▁▁▁▂▂▂▂█
solid-start.full	55.15 KiB	+119 B (+0.21%)	169.48 KiB	48.46 KiB	▂▁▁▁▁▁▁▁▁▁▁█

Trend sparkline is historical gzip bytes ending with this PR measurement; lower is better.