huskies: merge 984

server/src/pipeline_state/apply.rs

@@ -69,6 +69,20 @@ pub fn apply_transition(
     // Write the new stage to the CRDT (with optional content transform).
     crate::db::move_item_stage(story_id, new_dir, content_transform);
 
+    // Write stage-specific metadata into the shared `resume_to` register.
+    // Story 984: Superseded and Rejected stages reuse `resume_to` to carry
+    // their metadata (superseded_by ID and rejection reason respectively),
+    // since these stages never have a resume target.
+    match &after {
+        super::Stage::Superseded { superseded_by, .. } => {
+            crate::crdt_state::set_resume_to_raw(story_id, &superseded_by.0);
+        }
+        super::Stage::Rejected { reason, .. } => {
+            crate::crdt_state::set_resume_to_raw(story_id, reason);
+        }
+        _ => {}
+    }
+
     let fired = TransitionFired {
         story_id: StoryId(story_id.to_string()),
         before,