feat(llm): swap frank-large to halogen-flash-server, retire frank-npu

frank-large moves from the kingjones30/ROCmFPX llama.cpp build to
peonist-ai/halogen-flash-server 0.5.8 serving Qwen3.8-Flash-Next (w4b
.hgn 115.55 GiB + quality overlay). Upstream measures this engine at
roughly 4x the prefill throughput of the llama.cpp family on the same
gfx1151 silicon, and prefill dominates any prompt with real context.

Shape: a rootless Quadlet container (dankclaw/frank-large/quadlet/),
engine on container loopback :8730 (never published), OpenAI front-end
:8731 published as host 7770, HALOGEN_MODEL_ID=frank-large so no client
renamed anything. Context 262144, KV pool 262144 positions (~7.2 GiB,
conservative for a shared 121 GiB host), 4 slots, host reserve 24,
vision tower on, weights pinned, all other flags at vendor defaults.
Weights are fetched by HALOGEN_DOWNLOAD on first start into a writable
/home/dank/models/halogen.

The llama.cpp era (unit, env, serve script) is staged in .AGENTTRASH/
rather than deleted; the STRIX payload and the ROCmFPX build stay on
disk as the rollback target. deploy_llm_large becomes a user-quadlet
handler: it retires the old ROOT unit (moving its checkout symlink into
the home trash, never rm) and gates the first start on the download
rather than reporting a failure for a fetch that is working exactly as
designed.

frank-npu is retired in the same change. The kernel cmdline moves from
iommu=pt to amd_iommu=off for the 13-16% of prefill upstream measured,
and that takes the XDNA2 NPU with it: without PASID/SVA the driver
cannot open /dev/accel/accel0 (err=-19). Its five dependent routes are
repointed (Hermes vision -> frank-large, Hermes title generation ->
frank-small, harness vision -> frank-large, tiny -> frank-small, task ->
frank-large:medium) and its provider blocks are removed from both the
harness config and Hermes's live config. Audio input leaves the fleet
with no replacement; image input survives on halogen's vision tower.

Docs: new halogen-flash-server runbook, new IOMMU decision record, and
frank-npu rewritten as a retirement record. AGENTS.md topology, runtime
sections, benchmarking policy (frank-large is a user unit now) and the
harness model-config section are corrected.

serverAppConfigs-docs/LLM/index.md

@@ -1,10 +1,9 @@
 # LLM Fleet — Knowledge Base
 
 Documentation for the LLM inference fleet on two local machines
-(2026-08-30): FreeToken v0.1.2 on Dankserver (frank-small,
-Huihui-Qwen3.6-35B-A3B-abliterated-FP8) and kingjones30/ROCmFPX
-llama.cpp on Dankclaw (frank-large, kingjones777
-Qwen3.8-Flash-Next ROCmFP4-STRIX). Both services run the Qwen-Sharp chat template.
+(2026-09-11): FreeToken v0.1.2 on Dankserver (frank-small,
+Huihui-Qwen3.6-35B-A3B-abliterated-FP8) and halogen-flash-server 0.5.8 on
+Dankclaw (frank-large, peonist-ai Qwen3.8-Flash-Next w4b).
 
 > 2026-08-22: the former `vllmScripts` repository is merged into the
 > serverAppConfigs repository. This knowledge base moved from the old repo's
@@ -26,10 +25,10 @@ block-fp8, 20% MoE residency, 453k KV / 4 streams]
 
     subgraph Dankclaw[AMD Strix Halo - Ubuntu 26.04]
         E2[gfx1151 iGPU 64 GiB unified memory]
-        E[kingjones30/ROCmFPX build
+        E[halogen-flash-server 0.5.8
 frank-large, port 7770]
-        F[kingjones777 Qwen3.8-Flash-Next
-ROCmFP4-STRIX, 401k ctx / 2 slots, mmap PLE]
+        F[peonist-ai Qwen3.8-Flash-Next
+w4b .hgn + overlay, 262k ctx / 4 slots]
         E2 --> E --> F
     end
 
@@ -53,14 +52,19 @@ ROCmFP4-STRIX, 401k ctx / 2 slots, mmap PLE]
   (bs1/bs3/bs4/bs6, 8k–700k KV) on Dankserver RTX 3090
 - [[deployment]] — deploy and update process for both servers
 - [[frank-redo-2026-08-17]] — the 2026-08-17 topology change
-- [[kingjones-strix-rocmfp4]] — ACTIVE frank-large runbook:
-  kingjones777/Qwen3.8-Flash-Next-ROCmFP4-STRIX-GGUF, 177B params
+- [[halogen-flash-server]] — ACTIVE frank-large runbook since 2026-09-11:
+  peonist-ai/halogen-flash-server 0.5.8 serving
+  peonist-ai/halogen-qwen3.8-flash-next (Qwen3.8-Flash-Next w4b .hgn +
+  quality overlay), rootless Quadlet container on Dankclaw port 7770 —
+  deployed flags, memory model, client contract, troubleshooting
+- [[dankclaw-iommu-translation-off]] — why Dankclaw boots with
+  `amd_iommu=off` since 2026-09-11 (13-16 % prefill, measured upstream),
+  what it cost (the NPU endpoint), what was deliberately not copied from
+  the reference machine, and how to revert
+- [[kingjones-strix-rocmfp4]] — PRIOR frank-large runbook and rollback
+  target: kingjones777/Qwen3.8-Flash-Next-ROCmFP4-STRIX-GGUF, 177B params
   (56B MoE + 51.2B PLE), single 113.47 GiB GGUF, on the card's pinned
-  kingjones30/ROCmFPX fork (swapped 2026-08-30)
-- [[agentionai-fast-imatrix]] — retired frank-large runbook:
-  agentionai/Qwen3.8-Flash-Next-ROCmFP4-FAST-imatrix (87.06 GiB
-  Q4_0_ROCMFP4_FAST imatrix, v2 joined PLE) on build-qwen38
-  (2026-08-29 → 2026-08-30); rollback binary + payload retained
+  kingjones30/ROCmFPX fork (2026-08-30 → 2026-09-11)
 - [[ubatch-benchmark-large]] — active-model llama-bench ubatch sweep plan and results
 - [[kingjones-q8agent-rocmfpx]] — the retired Q8_0-AGENT investigation and `set_rows` failure
 - [[eemin-rocmi4-mtp]] — the former caf-eemin Qwen3.8-27B embedded-MTP model
@@ -78,11 +82,11 @@ ROCmFP4-STRIX, 401k ctx / 2 slots, mmap PLE]
   (deployed and reverted 2026-08-22)
 - [[Dankserver System Specs]] — the RTX 3090 box (frank-small)
 - [[Dankclaw System Specs]] — the Strix Halo gfx1151 box (frank-large,
-  served on the pinned kingjones30/ROCmFPX llama.cpp fork since 2026-08-30)
-- [[frank-npu]] — ACTIVE FLM NPU sight+sound runbook on
-  Dankclaw: Gemma4 E4B vision+audio pack on the XDNA2 NPU (FLM v1.0.1, port
-  7771, whole-registry serving, per-request model routing), incl. the
-  IOMMU/SVA root cause and the `iommu=pt` fix behind its first-deploy crash
+  on halogen-flash-server since 2026-09-11)
+- [[frank-npu]] — RETIRED 2026-09-11: the FLM NPU sight+sound endpoint
+  on Dankclaw (Gemma4 E4B vision+audio pack, XDNA2, port 7771), kept as
+  the retirement record — the IOMMU/SVA err=-19 root cause and where
+  every dependent route moved
 
 ## CIRU Reference (Dankclaw)