v2.2.0 — Save & Delete
New feature
- Save & Delete button: exports a timestamped JSON backup of selected entities
to/config/orphan_cleaner_backup_<timestamp>.jsonbefore deleting them - If the backup fails, deletion is automatically aborted
- The backup contains full entity metadata (entity_id, platform, method, age, disabled state)
Other
- README fully rewritten to reflect current UI and features