assertPathInside compared managed-tool paths with path.resolve only, so
on runners whose temporary directory surfaces as a Windows 8.3 short
path (RUNNER~1) the canonical long executable paths appeared to live
outside the owned root and the cutter matrix provisioning contract
failed. Resolve both sides through fs.realpathSync.native, walking up
through not-yet-existing segments so planned directories keep working,
and cover the contract with a real ShortPath regression test plus
mixed-existence canonicalization cases.
Harden update, system-check, queue, cutter, streamer and shutdown state transitions.
Add multi-user installer recovery, secret-safe config migration, provider fallback handling, managed-tool validation and real media export coverage.
Refresh the English public documentation, release notes and 1.0.18 product screenshot.