Fix timeout issues for HF Spaces deployment

app/assistant_v2.py

@@ -59,7 +59,8 @@ def initialize_models(use_lora=False):
 @st.cache_resource
 def initialize_vector_store():
     """Initialize vector store (FAISS by default, Qdrant Cloud optional)."""
-    vector_store = VectorStore()
+    with st.spinner("Loading embedding model..."):
+        vector_store = VectorStore()
     if Config.USE_QDRANT:
         store_type = "Qdrant Cloud"
     else:

app/vector_store.py

@@ -14,6 +14,10 @@ class VectorStore:
     """Vector storage with FAISS (default) and optional Qdrant Cloud upgrade."""
     
     def __init__(self, model_name: str = Config.EMBEDDING_MODEL):
+        import os
+        # Increase timeout for HF Spaces
+        os.environ['HF_HUB_DOWNLOAD_TIMEOUT'] = '300'
+        
         self.model = SentenceTransformer(model_name, device='cpu')
         self.use_qdrant = Config.USE_QDRANT