Update app.py

app.py

@@ -10,8 +10,6 @@ import os
 import sys
 import time
 import uuid
-from contextlib import asynccontextmanager
-from dataclasses import dataclass, field
 from typing import Any, Dict, List, Optional, Tuple
 
 import aiosqlite
@@ -409,16 +407,17 @@ async def deepseek_chat_complete(messages: list, body: ChatCompletionRequest) ->
 
     return "".join(text_parts), "".join(thinking_parts) or None
 
-# ─── Services ─────────────────────────────────────────────────────────────────
+# ─── Rate Limiting (معدل بدون dataclasses) ─────────────────────────────────
 class RateLimitEntry:
-    timestamps: List[float] = field(default_factory=list)
-    last_cleanup: float = field(default_factory=time.time)
+    def __init__(self):
+        self.timestamps = []
+        self.last_cleanup = time.time()
 
 class Services:
     def __init__(self):
-        self._rate_limits: Dict[str, RateLimitEntry] = {}
+        self._rate_limits = {}
         self._lock = asyncio.Lock()
-        self._cleanup_task: Optional[asyncio.Task] = None
+        self._cleanup_task = None
 
     async def init_db(self):
         async with aiosqlite.connect(CONFIG["db_path"]) as db: