add allday to calendar model

backend/modules/calendar/schemas.py

@@ -12,7 +12,7 @@ class CalendarEventBase(BaseModel):
     end: Optional[datetime] = None
     location: Optional[str] = None
     color: Optional[str] = None  # Assuming color exists
-    all_day: Optional[bool] = None  # Add all_day field
+    all_day: Optional[bool] = False  # Add all_day field, default to False
     tags: Optional[List[str]] = None  # Add optional tags
 
     @field_validator("tags", mode="before")
@@ -51,6 +51,7 @@ class CalendarEventUpdate(BaseModel):
 class CalendarEventResponse(CalendarEventBase):
     id: int
     user_id: int
+    all_day: bool  # Ensure all_day is always present in response
     tags: List[str]  # Keep as List[str], remove default []
 
     @field_validator("tags", mode="before")