Merge PR #174: Add missing Tuple import to generate_router.py

Fixes NameError that prevented generate_router.py from being imported.
The module uses Tuple[Path, Path] in type annotation but was missing
the import from typing module.

cli/generate_router.py

@@ -10,7 +10,7 @@ import json
 import sys
 import argparse
 from pathlib import Path
-from typing import Dict, List, Any
+from typing import Dict, List, Any, Tuple
 
 
 class RouterGenerator: