fix(terminal): flag, retry output

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/lib/models/terminal_model.dart

@@ -288,7 +288,8 @@ class TerminalModel with ChangeNotifier {
       // On reconnect, the server may replay recent output. That replay can include
       // terminal queries like DSR/DA; xterm answers them through onOutput as
       // "^[[1;1R^[[2;2R^[[>0;0;0c", which must not be sent back to the peer.
-      _suppressNextTerminalDataOutput =
+      final replayTerminalOutput = evt['replay_terminal_output'];
+      _suppressNextTerminalDataOutput = replayTerminalOutput == true ||
           message == 'Reconnected to existing terminal with pending output';
 
       // Fallback: if terminal view is not yet ready but already has valid

src/flutter.rs

@@ -1135,6 +1135,10 @@ impl InvokeUiSession for FlutterHandler {
                     ("message", json!(&opened.message)),
                     ("pid", json!(opened.pid)),
                     ("service_id", json!(&opened.service_id)),
+                    (
+                        "replay_terminal_output",
+                        json!(opened.replay_terminal_output),
+                    ),
                 ];
                 if !opened.persistent_sessions.is_empty() {
                     event_data.push(("persistent_sessions", json!(opened.persistent_sessions)));

src/server/terminal_service.rs

@@ -1118,6 +1118,7 @@ impl TerminalServiceProxy {
             };
             opened.pid = session.pid;
             opened.service_id = self.service_id.clone();
+            opened.replay_terminal_output = has_pending;
             if service.needs_session_sync {
                 if service.sessions.len() > 1 {
                     // No need to include the current terminal in the list.