fix(HEL-560): verify tools provide a non-mutating --help path

Co-authored-by: multica-agent <github@multica.ai>

tools/verify_datahub_console_ui.py

@@ -11,8 +11,6 @@ import os
 import sys
 from pathlib import Path
 
-from playwright.sync_api import sync_playwright
-
 import verify_datahub_console as backend
 
 ROOT = Path(__file__).resolve().parents[1]
@@ -42,6 +40,11 @@ def check(label: str, ok: bool, detail: str = "") -> None:
 
 
 def main() -> int:
+    if any(argument in {"-h", "--help"} for argument in sys.argv[1:]):
+        print(__doc__.strip())
+        return 0
+    from playwright.sync_api import sync_playwright
+
     shots = Path(sys.argv[sys.argv.index("--shots") + 1]) if "--shots" in sys.argv else None
     if shots:
         shots.mkdir(parents=True, exist_ok=True)