_validate_cron_script_path only checked that a no_agent/monitor script path
was relative and contained within scripts_dir, never that the file actually
existed — so a misplaced script registered fine and only failed at every
fire with a generic "Script not found" from scheduler_script.py, dropping
once-only jobs from jobs.json on failure.
The error messages also hardcoded "~/.hermes/scripts/" even though
resolution goes through get_hermes_home(), which is per-profile — actively
misleading users running non-default profiles into placing scripts in the
wrong directory.
Now the validator resolves the file and returns a "Script file not found"
error naming the actual resolved scripts_dir, surfacing the mistake at
creation time instead of at every scheduled fire.
chelsealong
7ecbe50d98