Closes: [BS-3332](https://linear.app/affine-design/issue/BS-3332/错误信息)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Bug Fixes**
- Improved error messages when file uploads exceed the allowed size, now showing the maximum file size limit in a human-readable format.
- Enhanced status updates for oversized files by displaying clear error messages during blob uploads.
- **Style**
- Error messages for file size limits are now more user-friendly and informative.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
We should not use async on `connect` and `disconnect`, for `WebSocketConnection` will never connect when offline.
We should handle the connection status of each storage in sync, using the `connection.waitForConnect`
This PR also puts the connection reference count on the `connect` and disconnect`
fundon