fix(verify): keep cli's own changed-path helper (tests patch cli.DATA_DIR)

Author: Seungpyo1007

app/verify/cli.py

@@ -13,13 +13,14 @@
 
 import argparse
 import json
+import subprocess
 from collections import Counter, defaultdict
 from collections.abc import Iterator
 from datetime import UTC, datetime
 from pathlib import Path
 from typing import Any
 
-from app.validate import changed_paths
+from app.validate import DATA_DIR
 
 from . import crossref, http_check, ledger, offline, promote, wikidata
 from .common import (
@@ -43,7 +44,17 @@ def _now_iso() -> str:
 
 def _changed_data_slugs(base: str = "origin/main") -> set[str]:
     """Changed seed paths against the PR merge base; git errors must stay visible."""
-    return changed_paths(base)
+    out = subprocess.run(
+        ["git", "diff", "--name-only", f"{base}...HEAD", "--", "data/"],
+        capture_output=True, text=True, check=True, cwd=DATA_DIR.parent,
+    ).stdout
+    # strip leading "data/" so it matches Record.path
+    paths = set()
+    for line in out.splitlines():
+        line = line.strip()
+        if line.startswith("data/") and line.endswith(".json"):
+            paths.add(line[len("data/"):])
+    return paths
 
 
 def _iter_selected(