llm(frank-archon): swap payload to the publisher's iq4r .rad, shape verbatim

Model swap on the radiance endpoint: MODEL_FILE moves from the in-house
qwen4exp-swift15-w4dn8-i8-hc8m.rad (116,416 MiB) to the engine author's
published qwen3.8-next-flash-fp8-iq4r-moe.rad (116,322 MiB, official
Qwen3.8-Flash-Next bf16 -> 4-bit non-uniform codebook experts + int8
trunk, card KL 0.0789 / top-1 92.85 % vs bf16). NO argument changed:
25600/5120 vram pair, 44928 host pool, fp8 KV, 3 x 200000, MTP depth 2,
wht6, MNBT 2048, froggeric v22.5 — the 2026-10-13 shape carries verbatim.

New fetch script scripts/download-frank-archon-iq4r.sh (hfget + exact
byte count 121,969,901,568 + LFS sha256, --verify-only default, ungated,
no token on the command line). Unit/serve/deployer lore re-keyed; the
seam pins the new payload id + sha256 and keeps the w4dn8 rollback
provenance. Homepage card points at the publisher repo.

Rollback: revert this commit (w4dn8 .rad stays on disk). The fp8-native
rad was deleted from dankserver 2026-10-15 (Frank's one-time rm, volume
for this payload); rebuild path documented.

scripts/deploy-remote.sh

@@ -1277,11 +1277,14 @@ deploy_llm_zealot() {
 }
 
 # deploy_llm_archon — frank-archon is the radiance engine (StillDeadcode,
-# digest-pinned stilldeadcode/radiance image) serving the OFFICIAL
-# Qwen/Qwen3.8-Flash-Next-FP8 at native block-FP8 precision from the
-# rad-convert container qwen4exp-fp8-native.rad, on BOTH R9700s (TP=2) as a
+# digest-pinned stilldeadcode/radiance image) serving the PUBLISHER's
+# 4-bit-codebook container of the official Qwen/Qwen3.8-Flash-Next
+# (qwen3.8-next-flash-fp8-iq4r-moe.rad, fetched by
+# scripts/download-frank-archon-iq4r.sh) on BOTH R9700s (TP=2) as a
 # ROOT unit whose serve script drives `podman run` directly (the engine is
 # the image entrypoint; the image lives in dank's rootless podman storage).
+# 2026-10-15 payload swap from the in-house w4dn8 (payload on disk =
+# rollback).
 # 2026-10-05 cutover from FreeToken (pre-cutover tag
 # frank-archon-freetoken-pr587-20261005); before that, the tcclaviger vLLM
 # fork (tag frank-archon-vllm-shapeG-20261003). Same port and alias; the
@@ -1290,7 +1293,7 @@ deploy_llm_zealot() {
 # Gates: the image must exist under its digest ref in dank's rootless
 # storage (FRANK_ARCHON_IMAGE), the .rad container file must exist at the
 # env's size floor (FRANK_ARCHON_MODEL_FILE >= FRANK_ARCHON_RAD_MIN_MIB —
-# a truncated convert is a guaranteed long-timeout boot), and the unit env
+# a truncated fetch is a guaranteed long-timeout boot), and the unit env
 # must be complete. Per-file sha256 verification is the fetch script's job
 # at download time and rad-convert/rad-info's job at build time, never
 # re-hashed here.
@@ -1325,13 +1328,13 @@ deploy_llm_archon() {
     fi
     if [[ ! -f "$model_dir/$model_file" ]]; then
         echo "ERROR: .rad container missing: $model_dir/$model_file" >&2
-        echo "frank-archon: run scripts/build-frank-archon-rad.sh" >&2
+        echo "frank-archon: run scripts/download-frank-archon-iq4r.sh --fetch" >&2
         return 1
     fi
     mib=$(( $(stat -c %s "$model_dir/$model_file") / 1048576 ))
     if [[ "$mib" -lt "$rad_min" ]]; then
         echo "ERROR: .rad container too small: $model_dir/$model_file is ${mib} MiB, want >= $rad_min" >&2
-        echo "frank-archon: rebuild it (scripts/build-frank-archon-rad.sh --force)" >&2
+        echo "frank-archon: re-fetch it (scripts/download-frank-archon-iq4r.sh --fetch; delete the staged file first if its sha256 failed)" >&2
         return 1
     fi