Continue rejected v37 through frozen loop

backend/tests/test_belgium_training_loop.py

@@ -31,6 +31,7 @@ def test_training_command_is_cuda_deterministic_and_bound_to_frozen_inputs(tmp_p
     assert "deterministic=True" in command
     assert "seed=42" in command
     assert "epochs=160" in command
+    assert "patience=18" in command
     assert "max_det=1000" in command
     assert "imgsz=640" in command
     assert "optimizer=auto" in command
@@ -104,6 +105,12 @@ def test_dry_run_can_gate_existing_checkpoint_without_training(tmp_path: Path) -
     assert json.loads(result.stdout) == {"training_command": None, "evaluate_existing": True}
 
 
+def test_existing_checkpoint_iteration_directory_can_be_created_without_yolo(tmp_path: Path) -> None:
+    iteration_dir = tmp_path / "closed-loop" / "iteration-001"
+    iteration_dir.mkdir(parents=True, exist_ok=True)
+    assert iteration_dir.is_dir()
+
+
 def test_loop_refuses_failed_dataset_audit(tmp_path: Path) -> None:
     audit = tmp_path / "audit.json"
     audit.write_text(json.dumps({"status": "needs_attention", "low_variance_positive_tile_count": 4}))