Revert frank-default-large to CIRU runtime (DFlash2 too slow)

Restore the CIRU ROCmFPX setup that DFlash2 replaced:

- Restore jcbtc/Qwen3.8-27B-CIRU-ActiveFPX-PromptForge v2 runtime
  (native depth-4 MTP, PromptForge DualView, ROCm 7.15)
- Archive the DFlash2 Vulkan deployment files in .AGENTTRASH
- DFlash2 was retired the same day it shipped (2026-08-21) for speed
- Revert docs (deployment.md, index.md, AGENTS.md); mark dflash2 page archived
- Restored scripts are byte-identical to the pre-swap CIRU versions

docs/dflash2-large-vulkan.md

@@ -1,7 +1,7 @@
 ---
 type: reference
 title: DFlash2 on Dankclaw (frank-default-large)
-description: unsloth Qwen3.8-27B-UD-Q8_K_XL served by upstream llama.cpp PR #27342 with a z-lab DFlash2 drafter on the Vulkan backend. Install runbook and the frank-default-large service.
+description: ARCHIVED - unsloth Qwen3.8-27B-UD-Q8_K_XL served by upstream llama.cpp PR #27342 with a z-lab DFlash2 drafter on the Vulkan backend. Retired 2026-08-21 for speed; kept as a runbook.
 tags:
   - llama.cpp
   - vulkan
@@ -13,12 +13,16 @@ tags:
 timestamp: 2026-08-21
 ---
 
-# DFlash2 on Dankclaw (frank-default-large)
+# DFlash2 on Dankclaw (frank-default-large) — ARCHIVED
 
-`frank-default-large` (port 52625) serves
+> **Archived 2026-08-21.** This DFlash2 Vulkan deployment was retired the
+> same day it shipped because it was slower than the CIRU runtime it
+> replaced. `frank-default-large` is back on CIRU. This page stays as the
+> runbook and provenance for the DFlash2 attempt.
+
+`frank-default-large` (port 52625) briefly served
 `unsloth/Qwen3.8-27B-UD-Q8_K_XL` with a DFlash2 drafter from z-lab. The
-runtime is upstream llama.cpp PR #27342 built with `GGML_VULKAN=ON`.
-This deployment replaced the CIRU HIP runtime on 2026-08-21.
+runtime was upstream llama.cpp PR #27342 built with `GGML_VULKAN=ON`.
 
 ## Why Vulkan
 
@@ -163,8 +167,8 @@ is close.
 
 ## See Also
 
+- [[ciru-activefpx-promptforge]] — the active CIRU runtime on Dankclaw
 - [[DFlash DSpark Speculative Decoding]] — DFlash/DSpark design and history
-- [[ciru-activefpx-promptforge]] — the retired CIRU runtime (archived)
 - [[deployment]] — the deployment and update process
 - [[qwen3.8-strix-optimizations]] — llama.cpp Optimizations on this iGPU
 - [[index]] — knowledge base index