Direct AI Helper Chrome Web Store build

Upload ZIP to Chrome Web Store:
/Users/mihalych/Desktop/direct-ai-backend/direct-ai-backend/dist-store/direct-ai-helper-store.zip

Backend:
https://api.direct-ai-helper.ru

User flow:
1. User installs extension from Chrome Web Store.
2. Extension registers installation at /api/account/install/register.
3. User can work immediately after installation.
4. Admin sees the user in the panel and can block access later if needed.
