feat: DO-gated manual batch mode (auto default, office-only switches)

tests/test_config_loader.py

@@ -39,6 +39,41 @@ def test_repo_config_loads_and_validates(repo_config_path):
         assert dp.min_bbox_area >= 0
 
 
+def test_do_block_and_batch_default_mode(repo_config_path):
+    cfg = load_config(repo_config_path)
+    assert cfg.batch.default_mode == "auto"
+    assert cfg.do.enabled is True
+    assert cfg.do.require_do is True
+    assert cfg.do.require_plate is False
+    assert cfg.do.retention_days == 7
+    assert cfg.do.photo_dir == "do_photos"
+    assert cfg.do.max_photos_per_batch == 8
+    assert cfg.do.zone_warn_seconds == 3
+    assert cfg.do.ocr.engine == "tesseract"
+
+
+def test_do_block_missing_uses_defaults(tmp_path):
+    p = tmp_path / "config.yaml"
+    p.write_text("models:\n  active_mode: C\n")
+    # minimal — will fail validate without modes; copy repo and strip do
+    import shutil
+    shutil.copy(repo_config_path_holder(), p)
+    raw = yaml.safe_load(p.read_text())
+    del raw["do"]
+    raw["batch"].pop("default_mode", None)
+    p.write_text(yaml.safe_dump(raw))
+    cfg = load_config(p)
+    assert cfg.batch.default_mode == "auto"
+    assert cfg.do.enabled is True
+    assert cfg.do.ocr.engine == "tesseract"
+    assert cfg.do.retention_days == 7
+
+
+def repo_config_path_holder():
+    import os
+    return os.path.join(os.path.dirname(os.path.dirname(__file__)), "config.yaml")
+
+
 def test_counting_knobs_match_production_defaults(repo_config_path):
     """All live counting knobs in predict.py must come from config.yaml."""
     cfg = load_config(repo_config_path)