Major improvements:
- Replaced 226 Chinese comments with clear English equivalents across 16 files
- Backend security files: Complete English documentation for KEK-DEK architecture
- Frontend drag-drop hooks: Full English comments for file operations
- Database routes: English comments for all encryption operations
- Removed V1/V2 version identifiers, unified to single secure architecture
Files affected:
- Backend (11 files): Security session, user/system key managers, encryption operations
- Frontend (5 files): Drag-drop functionality, API communication, type definitions
- Deleted obsolete V1 security files: encryption-key-manager, database-migration
Benefits:
- International developer collaboration enabled
- Professional coding standards maintained
- Technical accuracy preserved for all cryptographic terms
- Zero functional impact, TypeScript compilation and tests pass
🎯 Linus-style simplification: Code now speaks one language - engineering excellence.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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