Build `schedule_runner(jobs, current_hour)` — the dispatcher every cron-style scheduler runs each hour: - `jobs` is a dict: `job_id (str) -> hour (int)`, hour ∈ `[0, 23]`. - `current_hour` is the wall-clock hour now. - Return a list of `job_id`s whose scheduled hour equals `current_hour`, **sorted ascending by job_id** (deterministic order is critical for run logs). - Empty dict → empty list. - Invalid hour value in jobs (outside 0-23) → skip that job (defensive — the config table might have stale rows).