Improve session manager for a local user

yourbench_space/app.py

@@ -152,11 +152,13 @@ def run_evaluation_pipeline(oauth_token: gr.OAuthToken | None, org_name, eval_na
 
 def init_session(profile: gr.OAuthProfile | None):
     """Update session on load"""
-    if profile is None:
+    if is_running_locally():
         username = "local"
-    else:
+    elif profile:
         username = profile.username
-    
+    else:
+        username = None
+
     local_uuid = USER_ID_SESSION_MAP.get(username, str(uuid.uuid4()))
 
     if manager := MANAGERS.get(local_uuid):
@@ -168,7 +170,9 @@ def init_session(profile: gr.OAuthProfile | None):
             MANAGERS.remove(local_uuid)
             local_uuid = str(uuid.uuid4())
 
-    USER_ID_SESSION_MAP[username] = local_uuid
+    if username:
+        USER_ID_SESSION_MAP[username] = local_uuid
+
     MANAGERS.create(local_uuid)
     logger.info(f"Started session for {local_uuid}")
     return gr.State(local_uuid, delete_callback=lambda uid: MANAGERS.remove(uid))