<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Refactor**
- Streamlined internal logic for handling block operations to improve efficiency.
- Removed unused reactive subject and related code from document handling classes.
- Renamed a private initialization method for improved clarity.
- **Chores**
- Cleaned up redundant code and imports to simplify maintenance.
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