Update app.py

app.py

@@ -9,7 +9,6 @@ from datetime import datetime
 from typing import Dict, List, Optional, Any
 
 import aiohttp
-import httpx
 from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
 from telegram.ext import (
     Application,
@@ -38,6 +37,7 @@ RAPIDAPI_HOST = "veo-3-video.p.rapidapi.com"
 HF_MUSICGEN_URL = "https://api-inference.huggingface.co/models/facebook/musicgen-medium"
 HF_TOKEN = "hf_public"
 
+# Cloudflare Worker прокси
 CF_WORKER_URL = "https://tg-proxy.artyomanisimov37.workers.dev"
 
 # ============= FIRESTORE =============
@@ -338,10 +338,15 @@ async def callback_handler(update: Update, context: ContextTypes.DEFAULT_TYPE):
 def main():
     logging.basicConfig(level=logging.INFO)
     
-    # Настройка прокси через Cloudflare Worker
-    transport = httpx.AsyncHTTPTransport(proxy=CF_WORKER_URL)
-    client = httpx.AsyncClient(transport=transport, timeout=httpx.Timeout(30.0))
-    request = HTTPXRequest(client=client)
+    # Используем proxy_url (единственный рабочий параметр в PTB 21.3)
+    request = HTTPXRequest(
+        proxy_url=CF_WORKER_URL,
+        connect_timeout=30.0,
+        read_timeout=40.0,
+        write_timeout=40.0,
+        pool_timeout=15.0,
+        connection_pool_size=20
+    )
     
     application = Application.builder().token(TG_BOT_TOKEN).request(request).build()