hbc proper termination, hbd config reloadable

hbd/server/notify.py

@@ -62,6 +62,20 @@ def setup(cfg: dict):
     _config = dict(cfg)
 
 
+def reload_config(cfg: dict):
+    """Reload notification configuration.
+    
+    This function updates the module-level notification configuration
+    during runtime config reloads.
+    
+    Args:
+        cfg: New configuration dictionary
+    """
+    global _config
+    _config = dict(cfg)
+    logger.info("Notification configuration reloaded")
+
+
 def send_email(toaddrs, smtpserver, sender, subject, body, debug=0):
     """Send a plain email via SMTP. Returns True on success."""
     try: