A git installed DURING first-run setup stayed invisible (spawn git
ENOENT on project creation; onboarding indicator stuck on missing)
because the server's PATH snapshot predates the install. New resolver
probes well-known install locations on PATH ENOENT with cache
invalidation, wired into project git init/workspace detection, the
onboarding git status probe, and the dashboard clone route.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
