test(workspace): enforce cloud package ownership

tests/test_cloud_composition_safety.py

@@ -1,9 +1,8 @@
 """Composition safety checks (task 9.1).
 
-Verifies that ``cloud/`` is purely additive: every existing module that
-``cloud/`` composes (``runtime.task``, ``workflow.runner``, ``driver.registry``,
-``api.console``) is itself unchanged by this change, and remains unaware of the
-``cloud`` package in its source.
+Verifies that the cloud workspace package is purely additive: every existing
+module it composes (``runtime.task``, ``workflow.runner``, ``driver.registry``,
+``api.console``) remains unaware of the ``cloud`` package in its source.
 """
 
 from __future__ import annotations
@@ -13,6 +12,7 @@ import os
 from pathlib import Path
 
 PROJECT_ROOT = Path(__file__).resolve().parent.parent
+CLOUD_SOURCE_ROOT = PROJECT_ROOT / "packages" / "cloud-platform" / "cloud"
 
 
 def _module_source(path: Path) -> str:
@@ -82,10 +82,9 @@ def test_cloud_dispatch_imports_existing_runners_by_name() -> None:
     assert "WorkflowRunner" in source or "workflow_runner_factory" in source
 
 
-def test_cloud_source_files_exist_only_under_cloud_directory() -> None:
-    """The cloud/ change adds files only under cloud/ (and tests/, pyproject.toml, openspec)."""
-    cloud_dir = PROJECT_ROOT / "cloud"
-    assert cloud_dir.exists()
+def test_cloud_source_files_exist_only_under_cloud_workspace_member() -> None:
+    """Cloud source files are owned by the cloud-platform workspace member."""
+    assert CLOUD_SOURCE_ROOT.exists()
     expected_files = {
         "__init__.py",
         "config.py",
@@ -100,7 +99,7 @@ def test_cloud_source_files_exist_only_under_cloud_directory() -> None:
         "sdk/models.py",
     }
     found: set[str] = set()
-    for path in cloud_dir.rglob("*.py"):
-        found.add(str(path.relative_to(cloud_dir)).replace(os.sep, "/"))
+    for path in CLOUD_SOURCE_ROOT.rglob("*.py"):
+        found.add(str(path.relative_to(CLOUD_SOURCE_ROOT)).replace(os.sep, "/"))
     missing = expected_files - found
     assert not missing, f"missing cloud source files: {sorted(missing)}"