Problem:
- Only cover image was being saved when creating posts
- Section images were shown in preview but not sent to backend
- File inputs were not preserved after section saving
Solution:
- Store section files in global JavaScript storage
- Send all section images in FormData during form submission
- Update backend to process section_image_* files
- Add is_cover flag distinction between cover and section images
- Preserve file references throughout the editing process
Features:
- Multiple images per post section now work correctly
- Cover image marked with is_cover=True
- Section images marked with is_cover=False
- Proper file cleanup when images are removed
- Enhanced logging for debugging image uploads
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