docs: MTP wins the DFlash replacement; record parallel premature-EOS incident

- benchmark doc: spec A/B table (MTP 15.3-19.5, MTP+ngram 12-13.6,
  MTP n_max2 12.4-14.3, ngram 6.7-8.7, DFlash retired), the DFlash
  shared-draft-context premature-EOS incident, updated batch/ubatch.
- deployment.md: Dankclaw now draft-mtp n_max 3 + MTP-ONLY-Q8_0 sidecar,
  batch 8192/ubatch 8192; note Dankserver bench drift.
- index.md/AGENTS.md: corrected stale topology (Ling-3.0-flash, DFlash).
- DFlash doc: Dankclaw section rewritten for MTP; DFlash retired.

docs/DFlash DSpark Speculative Decoding.md

@@ -197,17 +197,17 @@ docker run --rm --name vllm-qwen36-dflash \
 
 ## Deployment on Dankclaw (AMD Strix Halo gfx1151)
 
-Dankclaw now runs llama.cpp as its runtime for `frank-default-large` (port 7770), serving the HauhauCS Qwen3.6-27B uncensored `Q8_K_P` model with a **DFlash draft model** (`draft-dflash`) on the ROCm (HIP) backend. The earlier vLLM-ROCm CIRU INT4 Ling-3.0-flash runtime (native MTP) was retired because the model had problems.
+Dankclaw now runs llama.cpp as its runtime for `frank-default-large` (port 7770), serving the HauhauCS Qwen3.6-27B uncensored `Q8_K_P` model with an **MTP sidecar draft** on the ROCm (HIP) backend. DFlash was retired on 2026-08-14.
 
 Current facts:
 
 - Main model: HauhauCS/Qwen3.6-27B-Uncensored-HauhauCS-Aggressive `Q8_K_P` (dense 27B).
-- Draft model: Alittlehammmer/Qwen3.6-27B-DFlash-GGUF-llama.cpp `Q8_0` (block size 16).
-- Spec command: `--spec-type draft-dflash` with `--spec-draft-n-max 8`.
-- Backend `--device ROCm0`; `--gpu-layers all --fit off`; KV `q8_0` K / `f16` V.
-- Context: 3 x 200700 = 602100; batch 2048 / ubatch 512.
+- Draft model: a4lg/Qwen3.6-27B-MTP-ONLY `Q8_0` (MTP head from the base model, loaded as a sidecar).
+- Spec command: `--spec-type draft-mtp` with `--spec-draft-n-max 3`.
+- Backend `--device ROCm0`; `--gpu-layers all --fit off`; KV `q8_0` K / `q8_0` V.
+- Context: 3 x 200700 = 602100; batch 8192 / ubatch 8192.
 
-Benchmark result: ROCm beats Vulkan, and DFlash-alone generates faster than a DFlash+ngram layer at 4k. See [[frank-default-large-benchmark]] for full numbers and the memory-bound batch/ubatch limits.
+Why DFlash was retired: DFlash causes premature EOS on a generating slot when another task lands with high prompt-cache reuse (LCP ~0.99). See [[frank-default-large-benchmark]] for the incident writeup and the MTP-vs-ngram A/B. The DFlash draft GGUF (`Qwen3.6-27B-DFlash-Q8_0.gguf`) remains in `/home/dank/models/` as reference only.
 
 ## Notes