[Model][Feat] Support Minimax-H3 quality grading requests through dynamic loading/unloading with Cache-DiT (#5853)

Signed-off-by: mglyn <1203789601@qq.com>

tests/diffusion/cache/test_cache_dit.py

@@ -81,6 +81,8 @@ def test_cachedit_public_api_is_explicit():
         "CacheDiTAdapterConfig",
         "CacheDiTBackend",
         "CacheDiTConfig",
+        "CacheDiTRequestSpec",
+        "RequestScopedCacheDiTRuntime",
         "SensenovaCachedAdapter",
         "cache_summary",
         "enable_cache_for_dit",