Update app/.pyfun

app/.pyfun

@@ -85,11 +85,11 @@ SEARCH_TIMEOUT_SEC      = "30"
   env_key             = "OPENROUTER_API_KEY"      # → .env: OPENROUTER_API_KEY=sk-or-...
   default_model       = "nvidia/nemotron-nano-9b-v2:free"
   models              = "meta-llama/llama-3-8b-instruct, mistralai/mistral-7b-instruct, nvidia/nemotron-nano-9b-v2:free, google/gemma-3-27b-it:free, openai/gpt-oss-20b:free, mistralai/Mistral-7B-Instruct-v0.3, meta-llama/Llama-3.3-70B-Instruct"
-  fallback_to         = "huggingface"                        
+  fallback_to         = "" # last in chain, no further fallback                       
   [LLM_PROVIDER.openrouter_END]
 
   [LLM_PROVIDER.huggingface]
-  active             = "true"
+  active             = "false"
   base_url           = "https://api-inference.huggingface.co/v1"
   env_key            = "HF_TOKEN"                # → .env: HF_TOKEN=hf_...
   default_model = "meta-llama/Llama-3.1-8B-Instruct"