3ded104218
- New feature: bookmark messages to exclude earlier history from context - Saves tokens by marking chapter start points in long chats - Uses SillyTavern's /hide and /unhide slash commands - Persists checkpoint across page reloads and generation events - UI: bookmark icon in message menus with visual indicators - Debounced restore function prevents concurrent executions - Pre-generation checkpoint application ensures messages stay hidden - Clean production-ready code with proper error handling