Refactor mapping boundary to reuse tools module constant

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

Author: cursoragent

tests/test_mapping_utils_import_boundary.py

@@ -4,12 +4,12 @@
 import pytest
 
 from tests.test_mapping_reader_usage import MAPPING_READER_TARGET_FILES
+from tests.test_tool_mapping_reader_usage import TOOLS_MODULE
 
 pytestmark = pytest.mark.architecture
 
 
 EXPECTED_MAPPING_EXTRA_IMPORTERS = ("tests/test_mapping_utils.py",)
-MAPPING_TOOL_IMPORTER = Path("hyperbrowser/tools/__init__.py")
 
 
 def _imports_mapping_utils(module_text: str) -> bool:
@@ -37,7 +37,7 @@ def test_mapping_utils_imports_are_centralized():
             discovered_modules.append(module_path.as_posix())
 
     expected_runtime_modules = sorted(
-        [*(path.as_posix() for path in MAPPING_READER_TARGET_FILES), MAPPING_TOOL_IMPORTER.as_posix()]
+        [*(path.as_posix() for path in MAPPING_READER_TARGET_FILES), TOOLS_MODULE.as_posix()]
     )
     expected_modules = sorted([*expected_runtime_modules, *EXPECTED_MAPPING_EXTRA_IMPORTERS])
     assert discovered_modules == expected_modules