Saturate PyAra and XMAD (frozen, excluded from active-core denominator)

Active core now 16 datasets (J-SPAW_LA + PyAra + XMAD frozen). Both stay
browseable on the Per-dataset tab. ranking_version unchanged (v4 rule).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.yaml

@@ -42,3 +42,4 @@ events:
   - {date: 2026-06-20, type: note, text: "manifest schema_version 1->2 (rides package 0.4.0): dataset_entry gains status/saturated_at/metric/category/penalty/verification + top-level contamination_overrides; submission schema 4->5 (enum, back-compat). ranking_version stays v3 (no scoring-rule change yet)"}
   - {date: 2026-06-20, type: note, text: "J-SPAW_LA declared saturated (status: saturated, saturated_at: 2026-06-20); field is inert until the arena active_core_ids consumer ships (stage 5)", dataset_id: "SpeechAntiSpoofingBenchmarks/J-SPAW_LA"}
   - {date: 2026-06-21, type: note, text: "ranking_version v3->v4: active_core_ids consumer shipped (stage 5). Saturated datasets are now excluded from the Mean/coverage/tier denominator board-wide and rendered as greyed 'frozen' tombstone columns (rightmost, out of the Mean). J-SPAW_LA is the first frozen dataset; it stays fully browseable on the Per-dataset tab."}
+  - {date: 2026-06-21, type: note, text: "PyAra and XMAD declared saturated (status: saturated, saturated_at: 2026-06-21) — frozen alongside J-SPAW_LA and excluded from the active-core denominator (active core now 16). Both stay fully browseable on the Per-dataset tab."}

manifest.yaml

@@ -92,8 +92,12 @@ core_set:
     revision: 40167badd6d8a289f02054761ee5411f49227b87
     n_trials: 201778
     paper_url: https://www.kaggle.com/datasets/alep079/pyara
+    status: saturated
+    saturated_at: 2026-06-21
   - id: SpeechAntiSpoofingBenchmarks/XMAD
     revision: fc1412809b875e1c5c102a2f615f30ffd09eda3d
     n_trials: 368085
     paper_url: https://arxiv.org/abs/2506.00462
+    status: saturated
+    saturated_at: 2026-06-21
 extended: []