docs(ml): frontier-context note on the model ledger

Same-instrument numbers from the protocol ledger: GLM-5.2 2.51 DER
plain completion vs GLM-5.3-Flash 8.57 / GLM-5.3 9.98 raw on
SadeedDiac-25 (1,200 paragraphs, windowed zero-skip evaluator);
attribution: wrong vowels, not convention. Dedicated distilled
models framed as the reproducible, protocol-pinned path. Links
rababa/docs/RESULTS.md for the disclosed rows.

Author: ronaldtse

src/pages/ml.astro

@@ -182,6 +182,17 @@ const clientModels = [
           >interscript-ml/docs/RESULTS.md</a
         >.
       </p>
+      <p class="ledger-note">
+        Frontier context, same instrument (SadeedDiac-25, the same 1,200 paragraphs under the
+        same windowed evaluator): GLM-5.2 diacritizes Arabic at 2.51 DER with plain completion;
+        its successors do not — GLM-5.3-Flash at 8.57, GLM-5.3 at 9.98 raw DER — and the loss is
+        wrong vowels, not writing convention. As frontier optimization shifts agentic, dedicated
+        distilled models remain the reproducible, protocol-pinned way to ship this task. Every
+        row with its decode protocol and bootstrap CIs: <a
+          href="https://github.com/interscript/rababa/blob/main/docs/RESULTS.md"
+          >rababa/docs/RESULTS.md</a
+        >.
+      </p>
     </div>
   </section>