[Feat] Add native Mooncake KV transfer from AR to DiT (#7166)

Signed-off-by: asukaqaq-s <1311722138@qq.com>
Signed-off-by: Acerak01-fy <wfy2003324@163.com>
Co-authored-by: Acerak01-fy <wfy2003324@163.com>
Co-authored-by: amy-why-3459 <wuhaiyan17@huawei.com>

tests/diffusion/diffusion_kv/test_initialization.py

@@ -58,6 +58,7 @@ def _od_config(**overrides):
         gpu_memory_utilization=0.9,
         kv_cache_memory_bytes=None,
         max_num_seqs=1,
+        diffusion_kv_max_rows_per_request=1,
         max_num_batched_tokens=64,
         num_gpus=1,
     )