Update usage_logging.py

usage_logging.py

@@ -123,7 +123,7 @@ def _country_lookup(ip: str) -> str:
     return "Unknown"
 
 
-def append_visit_to_dataset(country: str, city: str, event_type: str = "usage_start"):
+def append_visit_to_dataset(country: str, city: str, event_type: str = "usage_start", **extra_fields):
     api = _hf_api()
     if not api:
         return
@@ -141,6 +141,9 @@ def append_visit_to_dataset(country: str, city: str, event_type: str = "usage_st
         "event": event_type,
     }
 
+    if extra_fields:
+        event.update(extra_fields)
+
     new_content = (
         existing.rstrip("\n") + "\n"
         if existing.strip()