Fix model name format to use coderai provider

- Changed model name format from openai/... to coderai/...
- This ensures the model is correctly identified as coderai/TeichAI/Qwen3-8B-...

codai/openai/litellm.py

@@ -13,6 +13,13 @@ from typing import List, Dict, Any, Optional, AsyncGenerator, Union
 try:
     import litellm
     
+    # Register 'coderai' as an alias for the 'openai' provider
+    # This allows LiteLLM to use its internal HTTP handler for custom providers
+    # by mapping them to the 'openai' provider behavior
+    litellm.custom_provider_map = [
+        {"provider": "coderai", "custom_handler": litellm.openai}
+    ]
+    
     # Register 'coderai' as an alias for the 'openai' provider
     # This allows LiteLLM to use its internal HTTP handler for custom providers
     # by mapping them to the 'openai' provider behavior