CI: ensure audit script can import project modules

scripts/multilingual_audit_ci.py

@@ -3,8 +3,13 @@ from __future__ import annotations
 
 import argparse
 import json
+import sys
 from pathlib import Path
 
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+if str(PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(PROJECT_ROOT))
+
 
 def load_json(path: Path) -> dict:
     return json.loads(path.read_text())