Add list parsing key-display import boundary guard

Co-authored-by: Shri Sukhani <shrisukhani@users.noreply.github.com>

Author: cursoragent

CONTRIBUTING.md

@@ -170,6 +170,7 @@ This runs lint, format checks, compile checks, tests, and package build.
   - `tests/test_list_parsing_helper_usage.py` (list parsing shared helper usage centralization),
   - `tests/test_list_parsing_helpers_import_boundary.py` (list parsing helper import boundary enforcement),
   - `tests/test_list_parsing_key_display_helper_usage.py` (list parsing safe key-display helper usage enforcement),
+  - `tests/test_list_parsing_key_display_import_boundary.py` (list parsing safe key-display helper import boundary enforcement),
   - `tests/test_makefile_quality_targets.py` (Makefile quality-gate target enforcement),
   - `tests/test_manager_helper_import_boundary.py` (manager helper-import boundary enforcement for low-level parse modules),
   - `tests/test_manager_model_dump_usage.py` (manager serialization centralization),

tests/test_architecture_marker_usage.py

@@ -127,9 +127,10 @@
     "tests/test_job_request_helper_usage.py",
     "tests/test_job_start_payload_helper_usage.py",
     "tests/test_job_query_params_helper_usage.py",
+    "tests/test_list_parsing_helper_usage.py",
     "tests/test_list_parsing_helpers_import_boundary.py",
     "tests/test_list_parsing_key_display_helper_usage.py",
-    "tests/test_list_parsing_helper_usage.py",
+    "tests/test_list_parsing_key_display_import_boundary.py",
     "tests/test_job_wait_helper_boundary.py",
     "tests/test_job_wait_helper_usage.py",
     "tests/test_example_sync_async_parity.py",

tests/test_list_parsing_key_display_import_boundary.py

@@ -0,0 +1,25 @@
+import ast
+from pathlib import Path
+
+import pytest
+
+pytestmark = pytest.mark.architecture
+
+LIST_PARSING_MODULE = Path("hyperbrowser/client/managers/list_parsing_utils.py")
+
+
+def _imports_safe_key_display_for_error(module_text: str) -> bool:
+    module_ast = ast.parse(module_text)
+    for node in module_ast.body:
+        if not isinstance(node, ast.ImportFrom):
+            continue
+        if node.module != "hyperbrowser.mapping_utils":
+            continue
+        if any(alias.name == "safe_key_display_for_error" for alias in node.names):
+            return True
+    return False
+
+
+def test_list_parsing_safe_key_display_helper_is_imported_from_mapping_utils():
+    module_text = LIST_PARSING_MODULE.read_text(encoding="utf-8")
+    assert _imports_safe_key_display_for_error(module_text)