huskies: merge 1086 story Pipeline+Status split — Step C: migrate auto-assign, subscribers, and lifecycle transitions to read Pipeline + Status

server/src/db/gc.rs

@@ -12,7 +12,7 @@
 //!    zombie entries left over from sessions that predate the subscriber.
 
 use crate::db::{ContentKey, all_content_ids, delete_content};
-use crate::pipeline_state::Stage;
+use crate::pipeline_state::{Pipeline, Stage, Status};
 use crate::slog;
 use crate::slog_warn;
 
@@ -111,16 +111,18 @@ pub(crate) fn sweep_zombie_content_on_startup() {
     }
 }
 
-/// Return `true` when `stage` is one of the five terminal pipeline stages.
+/// Return `true` when `stage` is one of the terminal pipeline classifications.
+///
+/// Story 1086: matches via the [`Status`] projection (Done / Abandoned /
+/// Superseded / Rejected) plus [`Pipeline::Archived`] for plain archived items
+/// (which carry `Status::Active`).  Future Stage variants automatically
+/// participate by returning the appropriate Status / Pipeline from
+/// [`Stage::status`] / [`Stage::pipeline`].
 fn is_terminal_stage(stage: &Stage) -> bool {
     matches!(
-        stage,
-        Stage::Done { .. }
-            | Stage::Archived { .. }
-            | Stage::Abandoned { .. }
-            | Stage::Superseded { .. }
-            | Stage::Rejected { .. }
-    )
+        stage.status(),
+        Status::Done | Status::Abandoned | Status::Superseded | Status::Rejected
+    ) || matches!(stage.pipeline(), Pipeline::Archived)
 }
 
 #[cfg(test)]