feat(mindmodel): add CLI wrapper and tests

scripts/mindmodel/cli.py

@@ -0,0 +1,32 @@
+from typing import List, Optional
+
+
+def main(argv: Optional[List[str]] = None) -> int:
+    """CLI wrapper that delegates to scripts.mindmodel.validator.main.
+
+    Returns the integer exit code from the delegated main. If the
+    validator module is not available or raises, return a non-zero
+    exit code.
+    """
+    try:
+        # Import here to avoid side-effects on module import
+        from scripts.mindmodel import validator
+
+        # Call the validator.main if present
+        if hasattr(validator, "main"):
+            result = validator.main(argv)
+            # Ensure we return an int
+            try:
+                return int(result)  # type: ignore
+            except Exception:
+                return 1
+        else:
+            return 2
+    except Exception:
+        # Import error or runtime error — return non-zero so callers
+        # can detect failure (tests expect non-zero on missing manifest)
+        return 2
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())