Updated API

README.md

@@ -69,6 +69,28 @@ docker build -t telegram-groupfactory .
 docker run telegram-groupfactory
 ```
 
+## REST API
+
+The userbot also exposes an internal FastAPI surface on `API_HOST:API_PORT`
+for the separate conventional Telegram bot. Requests require `X-API-Key`.
+
+Relevant bot-facing endpoints:
+
+```text
+POST   /api/groups
+GET    /api/admin/default-users
+PUT    /api/admin/default-users
+POST   /api/admin/default-users
+DELETE /api/admin/default-users
+GET    /api/admin/qr-backup?qr_group=default
+PUT    /api/admin/qr-backup
+POST   /api/admin/qr-backup/image
+GET    /api/admin/qr-groups
+POST   /api/admin/qr-groups/{qr_group}/assignments
+DELETE /api/admin/qr-groups/assignments
+POST   /api/admin/qr-sync
+```
+
 ## Documentation
 
 - **[ADMIN_IMPLEMENTATION.md](ADMIN_IMPLEMENTATION.md)** - Admin-only configuration features