✨ Added image model

app/models/image.py

@@ -0,0 +1,15 @@
+from typing import Optional
+from datetime import datetime
+from pydantic import BaseModel, Field
+
+class Image(BaseModel):
+    id: Optional[str] = Field(None, alias="_id")
+    pin_id: Optional[str] = None
+    image_hash: str
+    metadata: dict = {
+        "created_at": datetime.now().isoformat(),
+        "original_filename": "",
+        "mime_type": "",
+        "size": 0
+    }
+    caption: Optional[str] = None