Update app.py

app.py

@@ -11,7 +11,8 @@ import yaml
 import time
 import logging
 from typing import Tuple, Optional, List, Dict
-from dataclasses import dataclass
+from dataclasses import dataclass, field
+from typing import List
 
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
 logger = logging.getLogger(__name__)
@@ -21,7 +22,7 @@ class AppConfig:
     MAX_SEED: int = np.iinfo(np.int32).max
     DEFAULT_WIDTH: int = 1280
     DEFAULT_HEIGHT: int = 720
-    SUPPORTED_FORMATS: List[str] = ["9:16", "16:9", "1:1"]
+    SUPPORTED_FORMATS: List[str] = field(default_factory=lambda: ["9:16", "16:9", "1:1"])
     CLEANUP_DAYS: int = 7
     MAX_GALLERY_SIZE: int = 1000