docs(frank-archon): iq4r era runbook + index/AGENTS re-key

New runbook frank-archon-radiance-qwen38-iq4r.md (publisher container,
payload chain, shape-verbatim cutover record with the boot-ledger and
measurement slots left open for the first boot, rollback). LLM index,
root vault index, and AGENTS.md (fleet table row, section, runbook
index: iq4r ACTIVE, w4dn8 RETIRED/on-disk, fp8-native deleted). Full
suite green.

serverAppConfigs-docs/index.md

@@ -182,12 +182,20 @@ The LLM inference fleet on the two hosts. Full index:
 ### Deployment and Topology
 
 - [[deployment]] — unified deploy and update process for both servers
-- [[frank-archon-radiance-swift15-w4dn8]] — STAGED frank-archon runbook:
+- [[frank-archon-radiance-qwen38-iq4r]] — **ACTIVE frank-archon runbook
+  (2026-10-15)**: the PUBLISHER's container of the official
+  Qwen3.8-Flash-Next (`qwen3.8-next-flash-fp8-iq4r-moe.rad`, 116,322 MiB,
+  w4nl 4-bit-codebook experts + int8 trunk, Hub-sha256-verified at fetch)
+  swapped in as a MODEL_FILE-only change — the 2026-10-13 shape (slab
+  25600 / fp8-KV 5120, 3 × 200,000, host pool 44,928, MTP depth 2) carries
+  verbatim; rollback = revert the swap commit (the w4dn8 `.rad` stays on
+  disk; the fp8-native `.rad` was deleted 2026-10-15, rebuildable)
+- [[frank-archon-radiance-swift15-w4dn8]] — RETIRED 2026-10-08 → 10-15 frank-archon runbook:
   Swift1.5 Qwen3.8-Flash-Next BF16 → GPTQ-calibrated W4Dn8 `.rad` (radiance
   1.0.13), gated on KLD ≤ 0.03 vs the BF16 container and decode ≥ 30.8 t/s;
   activates by flipping `MODEL_FILE` in `scripts/frank-archon.env`, rollback
   = revert that line (the FP8-native `.rad` stays on disk)
-- [[frank-archon-radiance-qwen38-native-fp8]] — the ACTIVE frank-archon
+- [[frank-archon-radiance-qwen38-native-fp8]] — the RETIRED 2026-10-05 → 10-08 frank-archon
   runbook (2026-10-05): the StillDeadcode radiance engine (digest-pinned
   287 MiB image, libr4d gfx1201 kernels) serving the OFFICIAL
   `Qwen/Qwen3.8-Flash-Next-FP8` at native block-FP8 (no-recipe convert