fix(api): complete release lane readback

apps/api/tests/test_delivery_closure_workbench_api.py

@@ -110,6 +110,20 @@ def test_delivery_closure_workbench_uses_gitea_private_inventory_lane():
     )
 
 
+def test_delivery_closure_workbench_marks_release_lane_complete_when_controlled_package_ready():
+    payload = load_delivery_closure_workbench()
+
+    _assert_delivery_workbench_shape(payload)
+    lane = {lane["id"]: lane for lane in payload["lanes"]}["release"]
+
+    assert lane["source_id"] == "status_cleanup"
+    assert lane["status"] == "controlled_status_cleanup_package_ready"
+    assert lane["blocker_count"] == 0
+    assert lane["completion_percent"] == 100
+    assert lane["metric"]["raw_overall_completion_percent"] == 74
+    assert lane["metric"]["controlled_status_cleanup_package_ready"] is True
+
+
 def test_delivery_closure_workbench_exposes_p0_005_credential_escrow_lane():
     payload = load_delivery_closure_workbench()