add hostname label

templates/config.alloy.erb

@@ -31,12 +31,6 @@ loki.process "parse_hostname" {
       }
     }
   }
-  // Fallback: Set hostname explicitly if not parsed
-  stage.static_labels {
-    values = {
-      hostname_fallback = system.hostname,  // e.g., fm002
-    }
-  }
 }
 
 // Refine labels