docs(debt): move the AMM semaphore line away from the end of Functional

docs/dev/debt/libSceAgc.md

@@ -34,7 +34,7 @@
 ### Functional
 
 - [sceAgcDebugRaiseException](../../../core/libs/prx/libSceAgc/Misc/src/Debug.cpp) (libSceAgc) - logs the exception id and returns 0, as retail hardware does nothing per [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/game_compat.c); the trap (`ud2`) OpenAGC describes for development hardware is not reproduced. Neither is verified on a console. The `uint32` exception id is [KytyPS5](https://github.com/KytyPS5/KytyPS5/blob/6f0cddd4404ec5203e71fea77e75fc373299ba3f/src/libs/agc.cpp)'s claim; OpenAGC declares no arguments, so the logged id may be leftover register contents
+- [sceAgcSetAmmSemaphoreMemory, sceAgcGetSemaphoreLabel](../../../core/libs/prx/libSceAgc/Misc/src/Semaphore.cpp) (libSceAgc) - the `(memory, sizeInBytes)` and `(index, label)` signatures, the 16 KiB alignment of the memory and its size, the single registration, the 32-byte labels and the zeroed first 8 bytes of each are what [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/game_compat.c#L508-L546) and [sharpemu](https://github.com/sharpemu/sharpemu/blob/a2983692930564815a77f81e74c151268f5b935f/src/SharpEmu.Libs/Agc/AgcExports.AmmSemaphore.cs) agree on; KytyPS5 has neither function. OpenAGC clears the whole memory and sharpemu only those 8 bytes, so a registration whose labels hold data past them throws. The two return different errors for every rejected call (OpenAGC `0x8a6c0002`, `0x8a6c000b`, `0x8a6c0048` and `0x8a6c0049`, sharpemu generic invalid-argument and already-exists errors), so every rejected call throws, including a lookup before registration. Not measured on the console; PPSA02801 imports both (OpenAGC's import analysis), no title is shown calling them.
 - [sceAgcDcbSetWorkloadsActive and sceAgcDcbSetWorkloadComplete](../../../core/libs/prx/libSceAgc/DcbState/src/Workload.cpp) (libSceAgc) and [sceAgcDriverRegisterWorkloadStream](../../../core/libs/prx/libSceAgcDriver/Resource/src/Registration.cpp) (libSceAgcDriver) - the driver call records only the stream id (1 to 31; it returns 0 for any argument and keeps no stream record), and the DCB calls write the packets [KytyPS5](https://github.com/KytyPS5/KytyPS5/blob/main/src/libs/agc.cpp) writes: an 18-dword (active) or 12-dword (complete) `IT_NOP` packet with the stream id, and for active the 64-bit mask of the workload ids, for complete the workload id and the 64-bit clear mask of that id. Both return null for a null command buffer, an unregistered or out-of-range stream, a workload id above 63, and for active a duplicate id or a count of 0 or above 63. The layouts and checks come from KytyPS5 alone; the console oracle in [prosper](https://github.com/mattias800/prosper/blob/main/prosper/tests/data/console_oracle/agcbuild.golden.tsv) measures the null return only for unregistered streams, not the packet contents of a registered one. The error codes the console driver returns for an invalid or repeated registration are unknown, so registration never fails here. PPSA29866 calls sceAgcDcbSetWorkloadsActive while building its command buffers (sceAgcDcbSetWorkloadComplete was not observed); nothing else was observed.
 - [sceAgcDcbSetWorkloadStreamInactive](../../../core/libs/prx/libSceAgc/DcbState/src/Workload.cpp) and [sceAgcAcbSetWorkloadsActive, sceAgcAcbSetWorkloadComplete, sceAgcAcbSetWorkloadStreamInactive](../../../core/libs/prx/libSceAgc/Acb/src/Control.cpp) (libSceAgc) - return null without writing to the buffer for a null command buffer or a stream that is not registered (out-of-range ids included), and throw for a registered stream. The console oracle in prosper measured only that null return, with no stream registered, three argument patterns each and nothing written ([ACB](https://github.com/mattias800/prosper/blob/df074498e56c0df22d74f9c6622e4709bc1c9a19/prosper/tests/data/console_oracle/agcbuild.golden.tsv#L48-L56), [DCB](https://github.com/mattias800/prosper/blob/df074498e56c0df22d74f9c6622e4709bc1c9a19/prosper/tests/data/console_oracle/agcbuild.golden.tsv#L196-L204)); the packet a registered stream gets is not measured. KytyPS5 has no body for these four, and its `IT_NOP` layout for the DCB active and complete calls differs from the SET_UCONFIG_REG, WRITE_DATA and SET_WORKLOAD sequence [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/agc_workload_packet.c) derives from the driver, so neither is taken. The `(buf, streamId)`, `(buf, streamId, workloadId)` and `(buf, streamId, workloadIds, workloadCount)` signatures are those of the DCB calls in [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/game_compat.c#L2317-L2384), which says the ACB calls use the same driver builders; no ACB declaration was found. `sceAgcDcbSetWorkloadsActive` checks the stream before it reads the workload ids, as OpenAGC does: the console returned null for stream 1 with the ids at address 2 ([measured](https://github.com/mattias800/prosper/blob/df074498e56c0df22d74f9c6622e4709bc1c9a19/prosper/tests/data/console_oracle/agcbuild.golden.tsv#L203)) without faulting
 - [sceAgcCreatePrimState](../../../core/libs/prx/libSceAgc/Shader/src/PrimState.cpp) (libSceAgc) - the `ge_user_vgpr_en` special is passed to the user configuration registers at whatever offset the shader header stores, as the SPRX does according to [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/game_compat.c#L1181-L1252), which copies all four specials verbatim (KytyPS5 stops on any other offset). PPSA99039, PPSA99505, PPSA99515 and PPSA99997 build their headers by hand with it at 0x25c (`GE_USER_VGPR1`) instead of 0x262 (`GE_USER_VGPR_EN`), value 0, and run on the console; it is not moved to 0x262, and the driver reads neither register. `ge_cntl`, `vgt_shader_stages_en` and a used `vgt_gs_out_prim_type` must still be at their own offsets, since the driver reads those registers there, so a header that stores one elsewhere throws naming the offset, although by OpenAGC the SPRX would copy it as well
-- [sceAgcSetAmmSemaphoreMemory, sceAgcGetSemaphoreLabel](../../../core/libs/prx/libSceAgc/Misc/src/Semaphore.cpp) (libSceAgc) - the `(memory, sizeInBytes)` and `(index, label)` signatures, the 16 KiB alignment of the memory and its size, the single registration, the 32-byte labels and the zeroed first 8 bytes of each are what [OpenAGC](https://github.com/OpenAGC/OpenAGC/blob/3c7e8072f0d7684e930454794fd5c02056946d73/src/game_compat.c#L508-L546) and [sharpemu](https://github.com/sharpemu/sharpemu/blob/a2983692930564815a77f81e74c151268f5b935f/src/SharpEmu.Libs/Agc/AgcExports.AmmSemaphore.cs) agree on; KytyPS5 has neither function. OpenAGC clears the whole memory and sharpemu only those 8 bytes, so a registration whose labels hold data past them throws. The two return different errors for every rejected call (OpenAGC `0x8a6c0002`, `0x8a6c000b`, `0x8a6c0048` and `0x8a6c0049`, sharpemu generic invalid-argument and already-exists errors), so every rejected call throws, including a lookup before registration. Not measured on the console; PPSA02801 imports both (OpenAGC's import analysis), no title is shown calling them.