The roadmap-dashboard Vitest sub-project overrode setupFiles with only
its jsdom helper. Vitest replaces (does not merge) setupFiles in child
projects, so the central isolation guard at
packages/core/src/__test-utils__/vitest-setup.ts was silently bypassed
for the 94 roadmap-dashboard tests, leaving them able to touch the real
project .fusion / $HOME / child processes without the leak-detection
and AI-CLI block.
Prepend the central guard so it loads before the dashboard jsdom setup.
All 94 roadmap-dashboard tests still pass.
f3f4a0b46b