On Windows, StdBackend only watched the logical paths Rojo read, so edits made
through the physical target of a file symlink, directory symlink, or junction
outside the watched tree never reached `rojo serve` until it was restarted.
The Windows backend now tracks each watched logical path's resolved target,
registers native watches for targets outside existing watches, and maps target
lifecycle events back to their logical aliases through a new
VfsEvent::Rescan. Watches are refreshed when a link is removed, recreated, or
repointed, and shared targets stay watched until their last alias goes away.
The change processor handles Rescan and logs, rather than panics on, events
for paths that no longer exist. Non-Windows behavior is unchanged.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
