feat: implement setup helpers and refactor setup script

- Added  to manage Git repository dependencies and file downloads.
- Refactored  to utilize the new helper functions for cloning the MPW generator.
- Enhanced OpenSTA Makefile to validate input files and configurations before execution.
- Updated OpenSTA TCL script to use environment variables for file paths.
- Refactored source export script to improve file handling and path resolution.
- Added tests for atomic writing, filelist parsing, and dependency management.
- Improved Yosys synthesis scripts to include configuration recording.

setup.py

@@ -1,8 +1,27 @@
 #!/usr/bin/env python3
 
-import sys
-import os
+import argparse
+from pathlib import Path
 
-project_path = os.getcwd()
-os.chdir(project_path)
-os.system("git clone https://github.com/retroSoC/mini-ver-mpw.git rtl/mini/mpw")
+from scripts.setup_helpers import ensure_git_repo
+
+
+ROOT = Path(__file__).resolve().parent
+MPW_REVISION = "30503eb8a7cf33a0c955913faba5014ebd00186f"
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description="Install the pinned MPW generator")
+    parser.add_argument("--update", action="store_true")
+    args = parser.parse_args()
+    ensure_git_repo(
+        "https://github.com/retroSoC/mini-ver-mpw.git",
+        ROOT / "rtl/mini/mpw",
+        MPW_REVISION,
+        update=args.update,
+    )
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())