feat(rust-client): operator credentials on acknowledge-alarm

Claude-Session: https://claude.ai/code/session_016J6isfcgqy4SB2RK3ZvFvT

clients/rust/crates/mxgw-cli/src/main.rs

@@ -376,6 +376,15 @@ enum Command {
         comment: String,
         #[arg(long, default_value = "")]
         operator: String,
+        /// Galaxy domain of the operator; empty authenticates the bare user name.
+        #[arg(long, default_value = "")]
+        operator_domain: String,
+        /// Operator password (prefer `--operator-password-env`; empty is allowed).
+        #[arg(long)]
+        operator_password: Option<String>,
+        /// Environment variable holding the operator password.
+        #[arg(long, default_value = "MXGATEWAY_OPERATOR_PASSWORD")]
+        operator_password_env: String,
         #[arg(long)]
         json: bool,
     },
@@ -1081,8 +1090,16 @@ async fn dispatch(command: Command) -> Result<(), Error> {
             reference,
             comment,
             operator,
+            operator_domain,
+            operator_password,
+            operator_password_env,
             json,
         } => {
+            // An empty password is allowed (Galaxy accounts may have one), so
+            // an unset flag and env resolve to an empty string.
+            let operator_password = operator_password
+                .or_else(|| env::var(&operator_password_env).ok())
+                .unwrap_or_default();
             let client = connect(connection).await?;
             let reply = client
                 .acknowledge_alarm(AcknowledgeAlarmRequest {
@@ -1090,6 +1107,8 @@ async fn dispatch(command: Command) -> Result<(), Error> {
                     alarm_full_reference: reference,
                     comment,
                     operator_user: operator,
+                    operator_password,
+                    operator_domain,
                 })
                 .await?;
             print_acknowledge_alarm_reply(&reply, json);