Root cause of stuck 'running' runs: the plugin's execute() method
only processed dashboard_ids[0] and returned. The remaining N-1
dashboards were never processed, and _update_run_status was called
after each single dashboard without checking dashboard_count.
Fixes:
- execute() now loops over ALL dashboard_ids and processes each
via _execute_path_a or _execute_path_b
- _update_run_status is called once AFTER the loop finishes
- _update_run_status now checks that len(records) >= dashboard_count
before marking the run as finished (prevents premature completion)
- Per-dashboard _update_run_status calls removed from _execute_path_a
and _execute_path_b (the parent loop owns it now)
- Test updated for new batch return format {dashboards: [...], total: N}