Log of study server now as jsonl

cooperative_cuisine/study_server.py

@@ -322,7 +322,7 @@ class Study:
                 env_name=self.current_running_env["env_id"],
             )
             os.makedirs(log_path, exist_ok=True)
-            with open(Path(log_path) / "study_log", "a") as log_file:
+            with open(Path(log_path) / "study_log.jsonl", "a") as log_file:
                 log_file.write(
                     json.dumps(
                         {
@@ -332,6 +332,7 @@ class Study:
                             "player_info": player_info,
                         }
                     )
+                    + "\n"
                 )
             return player_info, level_info
         else: