- Dispatch error alerts via NotificationService when scheduled tasks fail,
with info-level recovery notifications when a previously-failing task succeeds
- Per-service restart targeting: scheduled stack restarts can target specific
services instead of restarting the entire stack
- Prune label filter: scheduled prune operations can be scoped to resources
matching a specific Docker label
- CSV export button in the execution history panel for one-click download
- Fix: prune_targets was silently dropped on task creation (missing in INSERT)