Update chat_handler.py

chat_handler.py

@@ -170,9 +170,14 @@ async def start_session(req: StartRequest):
         project = next((p for p in cfg.projects if p.name == req.project_name and p.enabled), None)
         if not project:
             raise HTTPException(404, f"Project '{req.project_name}' not found or disabled")
-        
+
+        # Get published version
+        version = next((v for v in project.versions if v.published), None)
+        if not version:
+            raise HTTPException(404, f"No published version found for project '{req.project_name}'")
+
         # Create session
-        session = session_store.create_session(req.project_name)
+        session = session_store.create_session(req.project_name, version)
         greeting = "Hoş geldiniz! Size nasıl yardımcı olabilirim?"
         session.add_turn("assistant", greeting)