docs: close stale repo manager work

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a053ff-1d6f-7fe2-ac1c-a6eb40a42a0c

tests/test_registrar_reconcile.py

@@ -784,7 +784,9 @@ class TestWorkplanBindings:
             lambda url, json=None, timeout=None: (sent.update(b=json["bindings"]), R())[1],
         )
         rr._sync_workplan_bindings(repo, "http://hub", "demo")
-        legacy = [b for b in sent["b"] if b["workplan_id"].startswith("44444444")][0]
+        legacy = next(
+            b for b in sent["b"] if b["workplan_id"].startswith("44444444")
+        )
         assert legacy["status"] is None
 
     def test_binding_failure_never_fails_registration(self, tmp_path, monkeypatch):