feat(proto): RestartSurface gains resume flag (defaults false)

crates/spacesh-proto/src/message.rs

@@ -92,7 +92,11 @@ pub enum Cmd {
     SetRatios { workspace_id: WorkspaceId, node_path: Vec<u32>, ratios: Vec<f32> },
     MoveSurface { surface_id: SurfaceId, target_surface_id: SurfaceId, edge: Edge },
     ApplyPreset { workspace_id: WorkspaceId, preset_id: String, slots: Vec<PresetSlot> },
-    RestartSurface { surface_id: SurfaceId },
+    RestartSurface {
+        surface_id: SurfaceId,
+        #[serde(default)]
+        resume: bool,
+    },
     CloseWorkspace { workspace_id: WorkspaceId },
     SetWorkspaceMeta {
         workspace_id: WorkspaceId,
@@ -368,6 +372,21 @@ mod tests {
         assert_eq!(back, env);
     }
 
+    #[test]
+    fn restart_surface_resume_defaults_false_and_round_trips() {
+        // Legacy frame without `resume` decodes to false.
+        let legacy = r#"{"kind":"req","id":5,"cmd":{"cmd":"restart_surface","args":{"surface_id":"s_1"}}}"#;
+        let env: Envelope = serde_json::from_str(legacy).unwrap();
+        match env {
+            Envelope::Req { cmd: Cmd::RestartSurface { resume, .. }, .. } => assert!(!resume),
+            _ => panic!("wrong variant"),
+        }
+        // resume=true round-trips.
+        let e = Envelope::Req { id: 6, cmd: Cmd::RestartSurface { surface_id: SurfaceId("s_1".into()), resume: true } };
+        let back: Envelope = serde_json::from_str(&serde_json::to_string(&e).unwrap()).unwrap();
+        assert_eq!(back, e);
+    }
+
     #[test]
     fn event_log_cmd_no_limit_round_trips() {
         let env = Envelope::Req { id: 9, cmd: Cmd::EventLog { limit: None } };