Add compatibility shims at top-level to re-export SYS modules (pipeline/result_table/metadata/models/rich_display)

pipeline.py

@@ -0,0 +1,14 @@
+"""Backwards-compatibility shim for top-level `pipeline` module.
+
+The project moved core modules into the `SYS` package (e.g. `SYS.pipeline`).
+Many third-party code and tests still import top-level names like `pipeline`.
+This shim ensures `import pipeline` returns the `SYS.pipeline` module object.
+"""
+
+from importlib import import_module
+import sys
+
+# Import the real implementation and ensure subsequent imports of
+# the top-level name point to the SYS package module object.
+_real = import_module("SYS.pipeline")
+sys.modules[__name__] = _real