Fix packaged project archive command

scripts/archive_technical_projects.py

@@ -2,12 +2,21 @@ from __future__ import annotations
 
 import argparse
 import json
+from pathlib import Path
 import re
+import sys
 from dataclasses import dataclass
 from uuid import UUID
 
 from sqlalchemy.orm import Session
 
+# Direct execution from /app/scripts must resolve the repository's backend
+# package before similarly named installed packages.
+ROOT = Path(__file__).resolve().parents[1]
+BACKEND_ROOT = ROOT / "backend" if (ROOT / "backend" / "app").is_dir() else ROOT
+if str(BACKEND_ROOT) not in sys.path:
+    sys.path.insert(0, str(BACKEND_ROOT))
+
 from app.db.session import SessionLocal
 from app.models import Project