cc8a99f0a3
- Updated the summary length requirement for document summarization to 100-300 words. - Added new localization strings for missing storage engine notifications in English, Korean, Russian, and Chinese. - Implemented UI warnings for users regarding storage engine configuration when files exist, including confirmation dialogs for storage engine changes. - Enhanced backend validation to ensure a storage engine is configured before allowing content uploads. These changes improve user experience by providing clearer guidance on storage engine requirements and enhancing the overall functionality of the knowledge base management system.