move nltk package download

app.py

@@ -13,6 +13,9 @@ import spacy
 from rake_nltk import Rake
 import nltk
 
+nltk.download('stopwords')
+nltk.download('punkt_tab')
+
 # Configure logging
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
@@ -208,12 +211,6 @@ async def startup_event():
     load_classifier()
     load_ner_model()
 
-    try:
-        nltk.download('stopwords')
-        nltk.download('punkt_tab')
-    except Exception as e:
-        logger.error(f"NLTK download error: {e}")
-
 @app.post("/chat", response_model=ChatResponse)
 async def chat_endpoint(request: ChatRequest):
     """Enhanced chat endpoint with dynamic model selection"""