A workspace could not be created on Windows: "cwd must be an absolute path"
for D:\…, because createLane/canonicalCwd tested for a leading "/".
- lanes.js: path.isAbsolute/path.resolve; canonicalCwd stops at any root (a
missing drive looped forever); resolveLaneByCwd and /ensure accept "\" too
- native-dialog.js: the Windows picker gets an invisible TopMost owner form,
shown first — an ownerless dialog from the background server opened behind
the browser, or hidden
- windows-hide.js: every child process on Windows starts with windowsHide,
required first by the server and the detached scripts (a console window
flashed per git/npm call)
- Confirm/update/clear-data modals and the quota panel scroll instead of
overflowing a short window
