docs(cyberprev-seat): correct model lineage — it is a cyber SFT finetune, not an abliteration

Earlier commits and the compose header called cyberprev "an abliteration of
Qwen3.8-27B (refusal-direction weight edit, no finetune)". That was wrong. Per
the hotdogs model card (base_model_relation: finetune), cyberprev is an
offensive-security agentic tool-calling LoRA, merged at scale 1.0, trained on
hotdogs/cyber-sft-agent-qwen38 (8,400 rows across 22 pentest tools: nmap,
sqlmap, metasploit, hydra, crackmapexec, ...). The abliteration is INHERITED
from its base (hotdogs/Qwen3.8-27B-abliterated); the new capability in this
repo is the cyber SFT itself.

So the sec-seat lineage is: mog-sec = persona on stock weights; sentinel-r3 =
pentest-trajectory SFT on stock weights; cyberprev = cyber tool-calling SFT on
an abliterated base. All three are SFT-or-prompt variants; the earlier framing
of cyberprev as "not a finetune" was backwards.

Corrects the compose header lineage block, the homepage dashboard description,
and the gateway alias comment. No functional change; the running seat and its
weights are unchanged (label refreshes on next container recreate).

stacks/litellm/conf/config.yaml

@@ -970,7 +970,8 @@ model_list:
       mode: chat
 
   # cyberprev-27b -> hotdogs/Qwen3.8-27B-abliterated-cyber-preview (:8025, fv-ml1 GPU0).
-  # In-house mixed NVFP4 quant, dflash k=7. Replaced the retired sentinel-r3 seat 2026-09-14.
+  # Cyber offensive-security tool-calling SFT (LoRA finetune on an abliterated base), in-house
+  # mixed NVFP4 quant, dflash k=7. Replaced the retired sentinel-r3 seat 2026-09-14.
   # Sampler mirrors sec/sec-reasoning so an A/B isolates weights, not sampling. The retired
   # sentinel-r3 aliases were DELETED, not repointed — cyberprev weights under sentinel's name
   # would be silent substitution.