Windows export now reports the real USB link speed, probed from the
parent hub (IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX and _V2 for
SuperSpeedPlus), so SuperSpeed devices route to the correct root-hub
speed domain instead of advertising speed=0.
- protocol: pin DeviceInfoTruncated/DeviceInterface wire sizes with
two-sided compile-time assertions so a struct change fails the build
instead of silently mis-bounding the reader
- server: bound inbound connections with a handshake read deadline and a
per-iteration idle deadline on the control loop, plus write deadlines
on control writes; clear the deadline before the conn becomes a data
session
- server: serialize import reservation under reconcileAccess so a reserve
cannot interleave a reconcile pass that would release a busy device
- data: validate CMD_SUBMIT iso descriptor offset/length against the
transfer buffer before forwarding to a platform engine
- darwin: make darwinUSBHostDevice.Close idempotent via sync.Once to
avoid a double close/free under concurrent shutdown
- windows: guard windowsExport.device with a mutex and hand the claimed
handle to a single closer
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