fix: disable lazy barrel in bundled dev (fix #22749)

[mturac]

Description

Fixes #22749.

Full-bundle dev currently leaves Rolldown's lazy barrel optimization enabled. With barrel imports such as import { pl } from 'date-fns/locale', the generated dev bundle can retain references to symbols that are no longer declared (for example formatDistance$93), which crashes the entry before the app code runs.

This disables experimental.lazyBarrel only for bundled dev, next to the existing inlineConst workaround in the same code path.

Alternatives checked

• Checked for duplicate open PRs for experimental.bundledDev crashes on date-fns locale imports #22749 and this bundled-dev/date-fns crash; none found.
• Checked the published Rolldown version; 1.1.3 is still latest, so there is no dependency bump path yet.
• Tried disabling treeshake; it did not fix the missing symbol output.
• Tried disabling optimization.pifeForModuleWrappers; it did not fix the missing symbol output.

Tests

• pnpm --filter vite run build
• pnpm run test-serve bundled-dev
• pnpm run test-build bundled-dev
• pnpm run test-serve hmr-full-bundle-mode
• pnpm exec oxfmt --check packages/vite/src/node/server/bundledDev.ts playground/bundled-dev/__tests__/bundled-dev.spec.ts playground/bundled-dev/main.js playground/bundled-dev/package.json playground/bundled-dev/vite.config.ts
• pnpm exec eslint packages/vite/src/node/server/bundledDev.ts playground/bundled-dev/__tests__/bundled-dev.spec.ts playground/bundled-dev/main.js playground/bundled-dev/vite.config.ts
• git diff --check

No documentation update is needed because this is an internal workaround for experimental full-bundle dev mode.

[mturac]

The remaining red check looks unrelated to this patch.

Build&Test: node-24, windows-latest failed in playground/hmr/__tests__/hmr.spec.ts:

• page.waitForEvent: Timeout 30000ms exceeded while waiting for event "load"
• unhandled rejection: Timeout waiting for browser logs. Waiting for: /connected/, />>>>>>/

The other Build&Test matrix jobs passed. This patch only touches bundled dev / the playground/bundled-dev regression fixture, and the PR body lists the local bundled-dev + hmr-full-bundle-mode validation that passed.

I tried to rerun failed jobs, but GitHub rejected it with: Must have admin rights to Repository. Could a maintainer rerun the failed Windows job when convenient?

[wojtekmaj]

I can confirm that this fixes the issue I reported.

[sapphi-red]

Thanks, but this was done on the Rolldown side: rolldown/rolldown#10060