Support external vault roots across tooling

scripts/list-wiki-links.py

@@ -21,6 +21,8 @@ from collections import defaultdict
 from pathlib import Path
 from typing import Dict, List
 
+from vault_root import parse_vault_args
+
 # Reuse the parser/resolver from generate-graph.py (hyphenated name -> load by path).
 _GG_PATH = Path(__file__).resolve().with_name("generate-graph.py")
 _spec = importlib.util.spec_from_file_location("generate_graph", _GG_PATH)
@@ -102,9 +104,9 @@ def main() -> None:
         default="grouped",
         help="output format (default: grouped text)",
     )
-    args = parser.parse_args()
+    args = parse_vault_args(parser)
 
-    root = Path(__file__).resolve().parents[1]
+    root = args.vault_root
     rows = collect(root)
     if args.format == "tsv":
         print_tsv(rows)