Amended Qwen3 model name

.env.example

@@ -1,7 +1,7 @@
 # ArXiv Concept Tracker Configuration
 
 # Embedding Model
-EMBEDDING_MODEL=Qwen/Qwen2.5-Embedding
+EMBEDDING_MODEL=Qwen/Qwen3-Embedding-0.6B
 CACHE_DIR=./cache
 
 # ArXiv API

backend/config.py

@@ -7,7 +7,7 @@ class Settings(BaseSettings):
     """Application settings with Kalman filter parameters"""
 
     # Embedding configuration
-    embedding_model: str = "Qwen/Qwen2.5-Embedding"
+    embedding_model: str = "Qwen/Qwen3-Embedding-0.6B"
     cache_dir: str = "./cache"
 
     # ArXiv API settings