docs: LLM index + work log for frank-primary shape D, harness window

index.md intro and mermaid nodes still described 4 x 262144 fp8/bf16 and
frank-small at 2 x 262144; the active-deployment list had no frank-primary
entry at all. Fixed both, plus a malformed GLM list item.

log.md gains the shape-D entry (the SEQS=2 constraint, the arena-lever
measurement, the 2x2 probe table, the measured 1.99x), and the frank-small
entry's stale consequence bullet now points at the resolution.

frank-small runbook: the compaction-fit note is corrected - the 200704 window
moved frank-primary's trigger to 140,492, which fits a 180,224 slot again.

AGENTS.md

@@ -427,8 +427,12 @@ digest-pinned) serving **`orcarouter/Qwen3.8-Flash-Next-Uncensored-FP8`**
 **fp8 KV**, **no speculative decode**, **expert prefetch OFF**, and since
 2026-10-02 the **shape-D** geometry: `--max-model-len 200704` × 3 slots with
 `--kv-cache-memory-bytes 3,150,000,000`/rank, so the pool admits **~2
-full-length conversations (measured: 398,658 tokens = 1.99×)** while the argv keeps the only slot count
-that compiles (below).
+full-length conversations** (measured live: `398,658 tokens, Maximum
+concurrency for 200,704 tokens per request: 1.99×`) while the argv keeps the
+only slot count that compiles (below). `models.yml` carries
+`contextWindow: 200704` for this endpoint — the served window, not the model's
+native 262144, so the harness compacts before vLLM answers a longer prompt
+with a 400.
 
 **`--max-num-seqs 2` is impossible on this model.** Measured 2026-10-02 by
 single-variable boot probe against the then-deployed shape: SEQS 2 fails at