transform reporter still crashes on non-TTY stdout in v5.0.0 (fix in #887 unreleased)

[tommyfok]

Hi! Upstream status update on the non-TTY clearLine crash we hit, since issue #888 was closed by PR #887:

• The fix landed on master on 2026-02-16 but has not shipped in any stable release — the latest release line is still v5.0.0 (2025-12-07), which predates the fix. It's only available in v6.0.0-beta.0/.1.
• v6.0.0-beta.1's src/plugins/isolateEntries.ts additionally guards on process.env.CI (if (!process.stdout.isTTY || process.env.CI) return), which we confirmed works for our redirected-stdout case.

We're currently pinning electron-vite@5.0.0 with a pnpm patch that applies the same isTTY guard to dist/chunks/lib-*.js, and we'd like to drop it as soon as a stable release (ideally a 5.0.x backport, since upgrading to v6 is a bigger jump) ships.

Is a backport to v5 planned, or should we track the v6 stable release? Thanks!