set qwen3.6 as fallback for deepseek in litellm

litellm/litellm.yaml

@@ -52,6 +52,9 @@ data:
           model: openai/qwen3.6-27b
           api_base: http://llamacpp-qwen36-27b.llamacpp/v1
           api_key: "sk-no-auth"
+    router_settings:
+      fallbacks:
+        - deepseek-v4-flash-0731: [qwen3.6-27b]
     litellm_settings:
       #set_verbose: True  # Uncomment this if you want to see verbose logs; not recommended in production
       callbacks: ["arize_phoenix"]