The 5-minute exec timeout only killed the immediate shell, leaving
vitest/pnpm worker trees alive. Across retries these accumulated and
thrashed the host, starving the engine and TUI. Switch verification to
spawn-based runner with detached process group so timeouts SIGTERM the
whole tree (SIGKILL after 5s grace), and bump the wallclock to 10m for
larger workspaces. Stream-truncate output instead of relying on ENOBUFS.
Also fix two flaky/race-prone dashboard tests that were red on main and
blocking every in-review task at merge verification.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
9c7c8ee586