Add endpoint to quickly get the current user

src/api/users.py

@@ -105,6 +105,15 @@ async def get_users() -> list[UserData]:
     return [UserData.from_user(user) for user in users]
 
 
+@protected_router.get("/me")
+async def get_current_user(user: CurrentUserDep) -> UserData:
+    """Get the current user.
+
+    This endpoint can also be used to check if the user is authenticated.
+    """
+    return UserData.from_user(user)
+
+
 @protected_router.get("/{user_id}")
 async def get_user(user_id: PydanticObjectId) -> UserData:
     """Get a specific user."""