<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Chores**
- Added a `.gitignore` file to prevent the `.env` file in the self-hosted Docker directory from being tracked by Git.
- **New Features**
- Introduced a new environment variable for the search endpoint in the Docker Compose configuration for improved service connectivity.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->