Error messages for structure issues could be improved

[carnage]

#[SetFilterOrValidator(new WithNamedParameters(Password::class), Placement::After)]
class Password 
{
    public readonly string $hashedPassword;
    public function __construct(string $password) { /* hash password */ }
}

#[SetFilterOrValidator(new WithNamedParameters(Password::class), Placement::After)]
class User
{
    public function __construct(public readonly Password $password) { }
}

When called with the input: {'password': "some string password"} the error message isn't super helpful in tracking down the missing Nest filter. (correct input should be: {'password': {'password': "some string password"}} which probably isn't what is in the API)

Not sure this is completely fixable as it's a developer error but it'd be good if it was possible to give them a better hint as to how to fix it.