chore: Implement code review suggestions and format code.

leggend/api/models/notifications.py

@@ -5,12 +5,14 @@ from pydantic import BaseModel
 
 class DiscordConfig(BaseModel):
     """Discord notification configuration"""
+
     webhook: str
     enabled: bool = True
 
 
 class TelegramConfig(BaseModel):
     """Telegram notification configuration"""
+
     token: str
     chat_id: int
     enabled: bool = True
@@ -18,6 +20,7 @@ class TelegramConfig(BaseModel):
 
 class NotificationFilters(BaseModel):
     """Notification filters configuration"""
+
     case_insensitive: Dict[str, str] = {}
     case_sensitive: Optional[Dict[str, str]] = None
     amount_threshold: Optional[float] = None
@@ -26,6 +29,7 @@ class NotificationFilters(BaseModel):
 
 class NotificationSettings(BaseModel):
     """Complete notification settings"""
+
     discord: Optional[DiscordConfig] = None
     telegram: Optional[TelegramConfig] = None
     filters: NotificationFilters = NotificationFilters()
@@ -33,15 +37,17 @@ class NotificationSettings(BaseModel):
 
 class NotificationTest(BaseModel):
     """Test notification request"""
+
     service: str  # "discord" or "telegram"
     message: str = "Test notification from Leggen"
 
 
 class NotificationHistory(BaseModel):
     """Notification history entry"""
+
     id: str
     service: str
     message: str
     status: str  # "sent", "failed"
     sent_at: str
-    error: Optional[str] = None
+    error: Optional[str] = None