minor: >0 user id in bodies

src/user/schemas.py

@@ -2,11 +2,13 @@
 Pydantic models for the user module
 """
 from typing import Optional
+from pydantic import Field
+
 from src.schemas import CustomBaseModel
 
 
 class UserIDMixin(CustomBaseModel):
-	user_id: int
+	user_id: int = Field(gt=0)
 
 
 class OIDCClaims(CustomBaseModel):