Private Home Assistant custom integration that scans YAML and selected .storage files for entity ID references, then applies a rename with backups.
Copy this folder to:
config/custom_components/entity_rename_assistant
Add this to configuration.yaml:
entity_rename_assistant:Restart Home Assistant.
The integration registers a sidebar panel plus entity_rename_assistant.scan and entity_rename_assistant.apply services. Applying a rename writes backups under config/entity_rename_assistant_backups/.