libSceUlt technical debt

libSceUlt ulthreads - _sceUltUlthreadRuntimeOptParamInitialize, _sceUltUlthreadRuntimeCreate and _sceUltUlthreadCreate are assumed to take the same arguments as the existing exports without the underscore, including the trailing build version. sceUltUlthreadTryJoin is assumed to return ULT_ERROR_BUSY while the ulthread runs, and sceUltUlthreadRuntimeDestroy to return ULT_ERROR_BUSY while an ulthread created on the runtime is not joined. Neither error has been confirmed on PS5 hardware
libSceUlt queues - the added sceUltQueuePop, sceUltQueueTryPush, sceUltQueueDestroy and sceUltQueueDataResourcePoolDestroy signatures are inferred from the existing push/pop and object APIs. Queue destruction is assumed to reject blocked callers with ULT_ERROR_BUSY and otherwise discard queued data; pool exhaustion returns ULT_ERROR_AGAIN. These rules, alignment checks and shared slot limits have not been confirmed on PS5 hardware or a title. Non-null queue and data-pool option parameters throw because their layouts are unknown.

libSceUlt queues use preallocated host storage instead of the supplied guest work area; its existing size formula and the 512-byte object layouts remain unverified. Waiting-queue pool thread limits and waiter priority ordering are not implemented. Finalization wakes blocked queue callers with ULT_ERROR_STATE.