feat: consolidate legacy workflows into gyxx-flow

tests/test_cross_project_decoupling.py

@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from gyxx_flow.adapters.native import DeferredModuleCommandStep
+from gyxx_flow.catalog import WorkflowCatalog
+from gyxx_flow.modules import create_default_registry
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+
+
+def test_default_runtime_uses_only_project_owned_module_steps() -> None:
+    registry = create_default_registry(
+        catalog=WorkflowCatalog.load(PROJECT_ROOT / "config")
+    )
+
+    for workflow_id in registry.workflow_ids:
+        definition = registry.workflow(workflow_id)
+        assert all(
+            isinstance(step.action, DeferredModuleCommandStep)
+            for step in definition.steps
+        )
+
+
+def test_runtime_composition_has_no_old_root_environment_contract() -> None:
+    runtime_files = [
+        PROJECT_ROOT / "config" / "workflows.json",
+        *(
+            path
+            for path in (PROJECT_ROOT / "src" / "gyxx_flow" / "modules").glob("*/__init__.py")
+        ),
+        PROJECT_ROOT / "src" / "gyxx_flow" / "adapters" / "native.py",
+    ]
+    forbidden = ("GYXX_LEGACY_", "D:\\yingxiaoyunying", "D:\\shop-data-flow", "D:\\product-collector-analyze-flow", "E:\\auto-flow")
+
+    violations = [
+        f"{path}: {marker}"
+        for path in runtime_files
+        for marker in forbidden
+        if marker in path.read_text(encoding="utf-8")
+    ]
+    assert violations == []