Fix release: ship paper checkpoints — cross net_best_top3@Ep6000 + pelvis-trajectory net_best_kps@Ep6000; retract mis-released Ep9500 cross ckpt.

kv_control/model/net_best_top3.tar

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+oid sha256:2dc022dbefa1f27ff8ee932a5204c30e59e97eb3e8388447febf787f2b2c8df8
+size 573399899

{kv_control → kv_control_trajectory}/model/net_best_kps.tar

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:dd1355a4df88ce746388b2f792227bd94fbffc2ab041d9490b0482022cb30d79
-size 573398837
+oid sha256:b8ba26cf9790457106c2b066b23ebb32fa5c46f7497ab7b24f560b197d6938c2
+size 572845877