✨ Added DTOs for images

app/dto/image.py

@@ -0,0 +1,10 @@
+from typing import Optional
+from pydantic import BaseModel
+from fastapi import UploadFile
+
+class ImageUploadDTO(BaseModel):
+    exif_date: Optional[str] = None
+    caption: Optional[str] = None
+
+class ImageUpdateCaptionDTO(BaseModel):
+    caption: str