docs: move loader import debt to its library files

docs/dev/debt/libSceNet.md

@@ -6,7 +6,6 @@
 
 ### Unknown function info
 
-- PPSA01530 and PPSA13356 imports declared without parameters, signatures unknown, added without an implementation because the titles fail to load without them: [scePadUnknown_n3kSX62fgNo](../../../core/libs/prx/libScePad/Export.cpp) (libScePad), whose real name is unknown. [_sceUltWaitingQueueResourcePoolCreate, _sceUltSemaphoreCreate, _sceUltMutexOptParamInitialize, _sceUltMutexCreate, _sceUltQueueDataResourcePoolCreate and _sceUltQueueCreate](../../../core/libs/prx/libSceUlt/Export.cpp) (libSceUlt) forward to the exports without the underscore; that their argument lists match is inferred from the other underscore Ult exports, not measured.
 - [sceHttp2GetMemoryPoolStats, sceSslGetMemoryPoolStats, sceNetGetMemoryPoolStats](../../../core/libs/prx/libSceNet/Export.cpp) (libSceHttp2, libSceSsl, libSceNet) - the signatures `(int id, stats*)`, the layouts (pool size, peak and current use, and for Http2 and Ssl a 32-bit reserved field) and the error codes were measured on a PS5 (firmware 13.60). The pool size is the one given at init or pool creation. Http2 and Net allocate nothing from these pools. Ssl counts its certificate backend allocations and returned data against its pool; C++ bookkeeping is outside that budget. All three initially report zero use, where the console already reports 0x15C0 bytes for Ssl, 0x1640 for Http2 and 4 for a Net pool. Ssl's allocation sizes and peak usage do not reproduce the console allocator
 
 ### Functional

docs/dev/debt/libScePad.md

@@ -9,3 +9,4 @@
 - [scePadIsRemoteController](../../../core/libs/prx/libScePad/Export.cpp) (libScePad) - the name hashes to NID `fCWdlnmB1Ks`; the signature `(int handle, bool* remote)` comes from PPSA16064, which zeroes a byte, passes its address after `scePadGetControllerInformation` and ignores the result. The error codes follow the other pad calls. Controllers are local devices, so the answer is always false
 - [scePadSetAngularVelocityBiasCorrectionState](../../../core/libs/prx/libScePad/Export.cpp) (libScePad) - inferred signature `(int handle, bool enabled)` follows `scePadSetTiltCorrectionState` and `scePadSetAngularVelocityDeadbandState`; an invalid handle returns `PAD_ERROR_INVALID_HANDLE`, disabling is a no-op, and enabling throws because bias correction is not modelled
 - [scePadUnknown_zBsgF0q8DIM](../../../core/libs/prx/libScePad/Export.cpp) (libScePad, NID `zBsgF0q8DIM`) - PPSA03671 imports it and fails to load without it. The aerolib list has no name for the NID, and none of the pad names in SharpProspero, shadPS4 or OpenOrbis, nor the trigger effect, motion sensor, VR controller, HD and haptic names tried, hashes to it. It is declared without parameters and throws. The title's executable has an import stub for it but no call, jump or address reference to that stub, so the argument count and whether the result is used are unknown
+- [scePadUnknown_n3kSX62fgNo](../../../core/libs/prx/libScePad/Export.cpp) (libScePad, NID `n3kSX62fgNo`) - PPSA01530 and PPSA13356 import it and fail to load without it. The real name is unknown; it is declared without parameters and throws

docs/dev/debt/libSceUlt.md

@@ -5,6 +5,7 @@
 - [libSceUlt ulthreads](../../../core/libs/prx/libSceUlt/Export.cpp) - `_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](../../../core/libs/prx/libSceUlt/Export.cpp) - 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.
 - [sceUltQueueCreate, sceUltQueueDataResourcePoolCreate](../../../core/libs/prx/libSceUlt/Export.cpp) - a non-null option parameter is accepted and ignored, as the other Ult create calls already do. [OpenOrbis](https://github.com/OpenOrbis/OpenOrbis-PS4-Toolchain/blob/00d087b2323bf377fd39b7163a256977383cb232/include/orbis/Ult.h) declares `sceUltQueueOptParamInitialize` and `sceUltQueueDataResourcePoolOptParamInitialize` without their structures; the PS Vita libult in [RPCS3](https://github.com/RPCS3/rpcs3/blob/13aa88c3c4d66ea8799e987f7d762d90943ab17b/rpcs3/Emu/PSP2/Modules/sceUlt.h#L25-L78) defines both as a 16-byte reserved header followed by reserved fields, 128 bytes, with no settings, and [fpPS4](https://github.com/red-prig/fpPS4/blob/5ffbdbbd76b4da6e4b8721743ea491f494b28913/src/ps4_libsceult.pas#L142-L172) keeps them as 128 opaque bytes. That the PS5 structures carry no settings either is assumed from these, not verified
+- [_sceUltWaitingQueueResourcePoolCreate, _sceUltSemaphoreCreate, _sceUltMutexOptParamInitialize, _sceUltMutexCreate, _sceUltQueueDataResourcePoolCreate and _sceUltQueueCreate](../../../core/libs/prx/libSceUlt/Export.cpp) (libSceUlt) forward to the exports without the underscore; that their argument lists match is inferred from the other underscore Ult exports, not measured
 
 ### Functional