chore(deps): test Vite+ Rolldown fix preview

[fengmk2]

This draft updates vite-plus and the vite alias from 0.2.6 to preview 0.0.0-commit.15cc57f55e221b26ca82e7475ce90d22af8b5cd0. The preview build comes from Vite+ PR #2617.

CI sets VP_PR_VERSION=2617 because the normal installer cannot get a commit build from npmjs. The package manager uses the Vite+ registry bridge.

The preview includes Vite 8.2.2 and Rolldown 1.2.7. Rolldown PR #10809 fixes the scope analysis reported in Rolldown issue #10779. The incorrect analysis could keep a dead dynamic import in a server build. The existing production-build regression test passes with this preview.

The preview also includes tsdown 0.23.0. This version renames deps.skipNodeModulesBundle to deps.neverBundle, so this change updates the Cloudflare package configuration.

Vite+ 0.2.6 includes Oxlint 1.75.0. The preview includes Oxlint 1.81.0. Oxlint 1.79.0 started to run no-redeclare in ES modules (release notes, implementation PR). It now reports two existing next/document declaration merges. This change adds narrow ignores and does not change the runtime code. The same toolchain update reports a bare underscore parameter (implementation PR), so this change removes that unused parameter.

This change also updates vitest and @vitest/coverage-istanbul from 4.1.10 to 4.1.11. Dependabot now groups Vite+, Vite, and Vitest packages in one update.

Local package builds and the focused regression tests pass. The new Oxlint version also reports warning-level React and whitespace findings. This draft leaves that warning code unchanged so CI can show the full compatibility result.

[fengmk2]

CI completed for commit bc6de35d.

• All unit, integration, E2E, scaffold, and performance jobs passed. This includes the production-build regression for the dead dynamic import.

• The Check job built the packages and found 0 errors and 33 warnings. It failed because denyWarnings is true. The warning code is unchanged.

• All example builds completed. Each Wrangler upload then failed because CLOUDFLARE_API_TOKEN was not available. See one deploy job. This is a repository secret issue, not a preview build issue.

• The first CI run found that the normal installer queried npmjs for the commit build. Commit bc6de35d sets VP_PR_VERSION=2617, and the next run installed the preview correctly.

No other preview compatibility issue was found.