docs: fact-check knowledge base against live machines and vLLM source

Correct stale and incorrect facts after exhaustive verification:
- Dankclaw: NUMA node 0 = 31213 MB; disk 661G/1.1T/38%; vLLM 0.26.0 in
  /home/dank/vllm-rocm-venv (not vllm-env); clarify 96 GiB GPU-visible is a
  driver overcommit ceiling over 30 GiB physical (confirmed via sysfs
  mem_info_vram_total=103079215104)
- Dankserver: disk 729G/140G free/84%; /mnt/entropy 910G free; active service
  is vLLM EngineCore (22 GB), not llama-server; CPU model Ryzen 7 7700X
- index.md: Dankclaw 30GiB phys / 96GiB GPU-visible (was '61 GB unified');
  add deployment topology mermaid diagram
- vLLM defaults (from source): gpu_memory_utilization=0.92, max_num_seqs=128,
  swap_space removed (now --kv-offloading-size) across Overview/Index/RAM/Hybrid
- Quantization: FP8 not native on Ampere (RTX 3090) or RDNA 3.5 (gfx1151);
  add per-model hardware quantization notes; AWQ/GPTQ limited on ROCm
- Speculative decoding: add DFlash, DSpark, MTP, EAGLE3 to feature list
- Confirm Qwen3.6-27B and Qwen3.6-35B-A3B specs are correct (HF-verified)
- Production note: Dankclaw primary llama.cpp service runs ROCmFPX
  Ling-3.0-flash RocmFP4 MTP, not vLLM Qwen3.6-27B

docs/Dankclaw System Specs.md

@@ -14,7 +14,7 @@ Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 wit
 | Cores | 16 (1 socket, 1 thread per core) |
 | Max MHz | 5187.50 |
 | Min MHz | 625.00 |
-| NUMA Nodes | 1 (node 0, 62909 MB) |
+| NUMA Nodes | 1 (node 0, 31213 MB) |
 
 ### GPU (Integrated)
 
@@ -23,7 +23,7 @@ Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 wit
 | Model | AMD Radeon 8060S (Strix Halo) |
 | Device ID | 0x1586 |
 | Architecture | gfx1151 (Strix Halo) |
-| GPU-Visible Memory | 96 GiB (ROCm addressable range) |
+| GPU-Visible Memory | 96 GiB (driver VRAM ceiling, overcommitted) |
 | Physical RAM | 30 GiB (shared CPU + GPU) |
 
 ### ROCm
@@ -35,14 +35,14 @@ Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 wit
 | ROCm Version | 7.2.4 (from AMD repos) |
 | Agent Name | AMD RYZEN AI MAX+ 395 w/ Radeon 8060S |
 | GPU Arch | gfx1151 (Strix Halo) |
-| GPU Global Memory | 96 GiB (overcommitted, physical is 30 GiB) |
+| GPU Global Memory | 96 GiB (driver-reported ceiling; physical is 30 GiB) |
 
 ### Memory
 
 | Property | Value |
 |----------|-------|
 | System RAM | 30 GiB (shared CPU + GPU) |
-| GPU-Visible (ROCm) | 96 GiB (overcommitted addressable range) |
+| GPU-Visible (ROCm) | 96 GiB (driver ceiling; ROCm pool 1 is 31962252 KB) |
 | Swap | 8.0 GiB |
 | /dev/shm | ~15 GiB (half of RAM) |
 
@@ -50,7 +50,7 @@ Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 wit
 
 | Filesystem | Size | Used | Avail | Use% |
 |------------|------|------|-------|------|
-| / (nvme0n1p2) | 1.9T | 391G | 1.4T | 22% |
+| / (nvme0n1p2) | 1.9T | 661G | 1.1T | 38% |
 
 ### OS and Software
 
@@ -59,18 +59,20 @@ Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 wit
 | OS | Ubuntu 26.04 LTS (Resolute Raccoon) |
 | Kernel | 7.0.0-29-generic |
 | Python | 3.14.4 (system), 3.12.13 (vLLM venv) |
-| vLLM | 0.26.0+rocm723 |
+| vLLM | 0.26.0 (in `/home/dank/vllm-rocm-venv`, Python 3.12) |
 | uv | 0.12.2 |
 
 ## VLLM Relevance
 
 - Unified memory eliminates separate VRAM limits. The GPU uses system RAM.
-- ROCm reports 96 GiB GPU memory (overcommitted). Physical RAM is 30 GiB. vLLM sees 96 GiB and will try to use it. Set `--gpu-memory-utilization` conservatively (0.80-0.85) to avoid OOM when the OS needs memory.
-- Only 8 GiB swap. Set `--swap-space` conservatively (4-8 GiB).
+- ROCm reports 96 GiB of GPU-visible memory (overcommitted). Physical RAM is 30 GiB. The driver reports a 96 GiB VRAM ceiling (`sysfs mem_info_vram_total`), but the machine has only 30.5 GB of physical RAM. vLLM sees the large number and will try to use it. Set `--gpu-memory-utilization` conservatively (0.80-0.85) to avoid OOM when the OS needs memory.
+- Without the ROCm VRAM patch, ROCm clamps APU memory to 50% (see `scripts/patches/rocm_patched.py` on the remote). The patch restores the real GTT ceiling minus an 8 GB safety margin.
+- Only 8 GiB swap. Modern vLLM uses `--kv-offloading-size` instead of the removed `--swap-space` flag.
+- The active llama.cpp service on Dankclaw runs on the ROCmFPX runtime (`/home/dank/GitPackages/ROCmFPX/build-strix-rocmfp4/bin/llama-server`) with the Ling-3.0-flash ROCmFP4 MTP model, not regular llama.cpp.
 - ROCm 7.2.4 from AMD repos. vLLM ROCm support requires ROCm 6.3+.
 - Python 3.14.4 is very new. vLLM ROCm wheels target Python 3.12. Use a Python 3.12 venv.
 - Radeon 8060S falls under Ryzen AI MAX series (gfx1151). vLLM lists this as supported.
-- 1.4 TB free disk space is ample for model storage.
+- 1.1 TB free disk space is ample for model storage.
 - `libmpi_cxx.so.40` is missing from the system. Install `openmpi-bin` or provide a workaround for torch MPI dependency.
 
 ## See Also