* feat: implement admin token management and CLI login functionality
- Added `ADMIN_CLI_LOGIN` and `ADMIN_TOKEN` to the environment configuration.
- Introduced `AdminTokenManager` for handling admin sessions and token validation.
- Updated user session handling to include admin status.
- Enhanced API routes to utilize admin checks based on the new token management.
- Modified frontend components to reflect admin status correctly.
- Added a new endpoint for validating admin tokens.
* fix: remove token after validation
