feat(network): add proxy support and docker host-gateway configuration

services/admin_bot.py

@@ -6,6 +6,7 @@ from db.models import Post, TargetChannel
 from db.repository import Repository
 from bot.keyboards import get_review_keyboard
 from core.metrics import ADMIN_ACTIONS_TOTAL
+from core.proxy import get_telegram_proxy
 
 logger = logging.getLogger(__name__)
 
@@ -31,7 +32,7 @@ class AdminBotService:
         self.admin_user_ids = admin_user_ids or [int(x.strip()) for x in raw_admins.split(",") if x.strip()]
         self.session_name = session_name or os.path.join(SESSION_DIR, "admin_bot.session")
         os.makedirs(os.path.dirname(self.session_name), exist_ok=True)
-        self.client = TelegramClient(self.session_name, self.api_id, self.api_hash)
+        self.client = TelegramClient(self.session_name, self.api_id, self.api_hash, proxy=get_telegram_proxy())
 
     def is_admin(self, user_id: int) -> bool:
         return not self.admin_user_ids or user_id in self.admin_user_ids