feat(tasks): adopt canonical task statuses

scripts/cleanup_stale_tasks.py

@@ -7,7 +7,7 @@ Run via make:   make cleanup-stale
 Cron example:   0 3 * * * cd ~/state-hub && .venv/bin/python scripts/cleanup_stale_tasks.py
 
 Exit codes:
-  0  — ran successfully (zero or more tasks cancelled)
+  0  — ran successfully (zero or more tasks canceled)
   1  — API unreachable or unexpected error
 """
 
@@ -23,6 +23,7 @@ from datetime import datetime, timezone
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from api.workplan_status import CLOSED_WORKSTREAM_STATUSES, normalize_workstream_status
+from api.task_status import OPEN_TASK_STATUSES, normalize_task_status
 
 try:
     from api.events import EventEnvelope, publish_event, shutdown_publisher
@@ -32,7 +33,7 @@ except Exception:  # pragma: no cover — event publishing is optional
     shutdown_publisher = None  # type: ignore[assignment]
 
 API = "http://127.0.0.1:8000"
-STALE_STATUSES   = {"todo", "in_progress", "blocked"}
+STALE_STATUSES   = set(OPEN_TASK_STATUSES)
 CLOSED_WS_STATUS = set(CLOSED_WORKSTREAM_STATUSES)
 
 
@@ -91,7 +92,7 @@ def main() -> int:
 
     stale = [
         t for t in tasks
-        if t["status"] in STALE_STATUSES
+        if normalize_task_status(t["status"]) in STALE_STATUSES
         and t["workstream_id"] in closed_ws
     ]
 
@@ -115,10 +116,10 @@ def main() -> int:
         try:
             patch(
                 f"/tasks/{t['id']}/",
-                {"status": "cancelled", "blocking_reason": reason},
+                {"status": "cancel", "blocking_reason": reason},
             )
             cancelled.append(t)
-            print(f"  cancelled  [{t['priority']:8}] {t['title'][:70]}")
+            print(f"  canceled   [{t['priority']:8}] {t['title'][:70]}")
             if EventEnvelope is not None:
                 subject = "org.statehub.task.stale"
                 nats_events.append((
@@ -155,11 +156,11 @@ def main() -> int:
             by_ws.setdefault(closed_ws[t["workstream_id"]]["title"], []).append(t["title"])
 
         summary = (
-            f"Stale-task cleanup: cancelled {len(cancelled)} task(s) "
+            f"Stale-task cleanup: canceled {len(cancelled)} task(s) "
             f"across {len(by_ws)} finished workstream(s)"
         )
         detail = {
-            "cancelled_count": len(cancelled),
+            "canceled_count": len(cancelled),
             "by_workstream": {ws: titles for ws, titles in by_ws.items()},
             "error_count": len(errors),
         }
@@ -173,7 +174,7 @@ def main() -> int:
         print(f"[cleanup-stale] Completed with {len(errors)} error(s).")
         return 1
 
-    print(f"[cleanup-stale] Done. {len(cancelled)} task(s) cancelled.")
+    print(f"[cleanup-stale] Done. {len(cancelled)} task(s) canceled.")
     return 0