docs index: link frank-large flash-server v2 page

The writer's 31b1ec3 added LLM/frank-large-flash-server-v2-swift15.md
but did not wiki-link it from index.md, which failed the docs-index
seam (test 135). Add the link as the new ACTIVE frank-large runbook
(supersedes halogen 0.1.4).

serverAppConfigs-docs/index.md

@@ -294,6 +294,9 @@ The LLM inference fleet on the two hosts. Full index:
   disables speculation — engine law); TEXT-ONLY and censored base, both
   accepted tradeoffs; no server-side sampler, so the thinking recipe rides
   the wire
+- [[frank-large-flash-server-v2-swift15]] — the ACTIVE frank-large runbook
+  since 2026-10-06 (supersedes halogen 0.1.4): halogen-flash-server 0.16.2
+  serving the abliterated Swift1.5 Qwen3.8-Flash-Next v2 (.hgn)
 - [[frank-large-rocmfpx-q6agent-uncensored-mtp]] — RETIRED 2026-10-03 → 10-05
   (rollback target; payload, fork build and build script on disk): the pinned
   kingjones30/ROCmFPX fork (scripts/build-rocmfpx.sh) serving kingjones777/