* perf(cursor): stop JSON and menubar answers waiting on cursor.com
report/today/month --format json, overview and status --format menubar-json
awaited the hourly Cursor usage download (15 s cap, 45 s on the first
backfill) before parsing. The download now runs beside the command and its
import applies after the command (serve: between two requests, then its
memos are dropped), so the next run shows it. Dashboards still wait.
* test(cursor-sync): keep the in-process sync enabled when the shell disables it
* test(cursor-sync): wait for the serve memo instead of a fixed answer count
The serve test expected the second answer to be memoized, but serve only
memoizes once its root watchers are armed, which on a slow CI runner lands
after that answer. Keep asking until two answers share a generation. The
spawn now imports the fake fetch by file URL so Windows accepts the path,
and the in-process test points USERPROFILE at the temp home too.
