[Wolfcare]

Problem and change

Unplugging the FireWire adapter while a MIDI endpoint is published aborts the dext.
ServiceContext::Reset(Full) calls MidiNubPublisher::TerminateAll(), which calls
Terminate() on nubs the kernel has already terminated with ASFWDriver's other
client services. DriverKit then asserts:

DriverKit  __assert_rtn
DriverKit  OSMetaClassBase::QueueForObject(unsigned long long)
DriverKit  IOService::Terminate(...)
net.asfw.driver  ASFW::Midi::MidiNubPublisher::TerminateNub(unsigned long long)
net.asfw.driver  ASFW::Midi::MidiNubPublisher::TerminateAll()
net.asfw.driver  ServiceContext::Reset(ServiceContext::ResetMode)
net.asfw.driver  ReleaseQuiescedRuntime(...)
net.asfw.driver  ASFWDriver::RequestRuntimeQuiesce(unsigned int)

SBP2NubPublisher::Shutdown already documents the same abort for SBP-2 nubs, and
handles it by dropping its bookkeeping. This change does the same for MIDI on a
full reset (MidiNubPublisher::ReleaseAll). A suspend reset still calls
TerminateAll, because the nubs are live then and wake publishes new ones.

Prior discussion

None. It's a crash fix that follows the existing SBP-2 pattern.

Architecture and scope

Midi/Core/MidiNubPublisher and Service/DriverContext.cpp. Applies to any family
that publishes MIDI nubs (DICE today; MOTU with the MOTU MIDI work).

Testing and evidence

• New unit test MidiNubPublisherTests.ReleaseAllForgetsWithoutTerminating; full C++ suite passes (3,917 tests on this branch).
• Hardware: MacBook Air M2, macOS 26.7.1, Apple Thunderbolt to FireWire Adapter, MOTU UltraLite mk3 with MIDI ports published.
  • Before: adapter unplug crashed the dext twice in a row (17:42 and 18:58).
  • After: releasing endpoint=... during shutdown is logged, no crash report, and MIDI is republished after replug.
• Not tested: sleep/wake. The suspend path is unchanged.
• Not tested: a DICE device with MIDI.

Regression risks

On a full stop the nubs are no longer explicitly terminated. That relies on the
kernel terminating them with the driver, the same assumption the SBP-2 publisher
already makes.