docs: обновлены README и promo материалы

- README: обновлена информация о проекте
- promo: обновлен demo интерфейс поиска
- promo/screen.png: добавлен новый скриншот приложения

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: chatman-media

README.md

@@ -74,7 +74,7 @@
 - **Modular Architecture** - easily add new features through plugins
 - **Open Source** - transparency and ability to participate in development
 
-![Timeline Interface #1](/public/screen5.png)
+![Timeline Interface #1](/public/screen.png)
 
 ## 🏗️ Architecture