campaign(qwen38): the tap producer is latest radiance, at a vendor-backed floor

The tap did not arm on the production pin: a 17-hour calib run on 1.8.1
wrote zero bytes while /health, /stats and the push all read healthy.
On :latest (v1.14.0, revision 4a61d7296bc5) the same boot prints
'recorded passes: off, the program accumulates calibration Grams
(gram_accum)' and a 9,129-token push sealed 24,768 gram files (42.9 GB)
in the fitting shape - 4 slots at a 2,048-token step, production's own.

The vendor's calibration shape (--max-num-batched-tokens 65536,
--max-num-seqs 64, ~930 tok/s) cannot boot two 32 GiB R9700s: the
activation arena alone is 12.83 GiB of the 27.95 GiB claimable, and
every variant stops in the VRAM resolver (short 3.19 GiB .. 86 MiB,
then a starved cache).

Floor moves 12M -> 1.5M tokens: the vendor's own measurement is 'a
pooled Gram from 10M tokens beat one from 1M by under 1%', and 1.5M is
hours at this rig's rate instead of the 29 h a 6M floor cost.

The converter moves to the same digest: rad-convert's gptq:calib=<dir>
input is version-stable, so a latest-written tap converts on latest.

scripts/convert-qwen38-w5nl64.sh

@@ -47,7 +47,12 @@
 set -u -o pipefail
 
 SELF="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-IMAGE=${IMAGE:-stilldeadcode/radiance@sha256:d590e300234bf6d2f942a0b8d456d183153fd808f28820e6c2fa69c9389178ed}
+# THE TOOLCHAIN PIN. `:latest` on 2026-10-30 is v1.14.0 (revision 4a61d7296bc5),
+# the same image the tap producer boots: a tap must be converted by the line that
+# is current, and rad-convert's `gptq:calib=<dir>` input contract is version-stable
+# (RADGRAM2 + gram.r<rank>.<stem>.bin), so nothing else about the recipe moves with
+# it. Production stays on its own pin — this is the campaign's toolchain.
+IMAGE=${IMAGE:-stilldeadcode/radiance@sha256:69add58f7de1ed2bca2b1e20a4cc75717557df3f73569a178eca5aafe8c44093}
 CKPT=${CKPT:-/home/dank/models/Qwen3.8-Flash-Next}
 CAMPAIGN=${CAMPAIGN:-/home/dank/campaign/qwen38-w5nl64}
 RECIPE=${RECIPE:-$SELF/recipes/qwen4exp-qwen38-w5nl64-bf16trunk.recipe}