feat(mtproto): Telegram proxy panel and /api routes

- Docker telegrammessenger/proxy: install/restart/remove from UI
- GET/POST /api/mtproto/*, UI_HIDE_MTPROTO / UI_HIDE_SECTIONS=mtproto
- install.sh vars MTPRO_*; /health returns version; docs

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "amnezia-admin",
-  "version": "1.1.7",
+  "version": "1.2.0",
   "private": true,
   "description": "amnezia_web-PRO — веб-панель AmneziaWG: несколько инстансов, WARP, каскад/Endpoint, экспорт .conf (Docker)",
   "license": "MIT",