Add database initialization

main.py

@@ -1,8 +1,10 @@
 from ui import GenerateUI
 from dotenv import load_dotenv
+from src.models import init_db
 
 load_dotenv()
 
 if __name__ == "__main__":
+    init_db()
     ui_generator = GenerateUI()
     ui_generator.launch_ui()