增加即梦图片5.0和视频2.5的能力

contracts/usage/http-v1.json

@@ -6,6 +6,6 @@
   ],
   "presets": ["today", "7d", "30d", "month"],
   "capabilities": ["image.generate", "video.generate"],
-  "providers": ["volcengine-visual", "evolink", "seedance", "bailian"],
+  "providers": ["volcengine-visual", "evolink", "seedance", "seedream", "bailian"],
   "infrastructureStatus": 500
 }