### What problem does this PR solve?
Fix: Optimized the login page and fixed some known issues. #9869
- Added the FlipCard3D component to implement a 3D flip effect on the
login/registration forms.
- Adjusted the Spotlight component to support custom positioning and
color configurations.
- Updated the route to point to the new login page /login-next.
- Added a cancel interface to the auto-generate function.
- Fixed scroll bar issues in PDF preview.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
feat: Added UI functions related to data-flow knowledge base #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
