feat: add HF_TOKEN check

src/rag/llm.py

@@ -1,6 +1,21 @@
+import os
+import logging
+
+# Check what the OS actually sees
+raw_token = os.getenv("HF_TOKEN")
+
+print("--- DEBUG START ---")
+if raw_token:
+    print(f"OS found HF_TOKEN! Length: {len(raw_token)}")
+    print(f"First 3 chars: {raw_token[:3]}...") # Safety check
+else:
+    print("OS did NOT find HF_TOKEN. It is None/Empty.")
+    # Print all keys available (masked) to see if there is a typo
+    print("Available Env Vars:", [k for k in os.environ.keys() if 'TOKEN' in k])
+print("--- DEBUG END ---")
+
 from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint
 from langchain_core.prompts import ChatPromptTemplate
-import logging
 
 from src.prompts import SYSTEM_PROMPT
 from src.core.config import settings