Fix idColumn + jsonAttributes type

[salisbury-espinosa]

fixes #2745

[lehni]

what does never achieve here?

[salisbury-espinosa]

@lehni

the table model may not have any column id at all (not an empty array - but simply a method, for example, always throw out an exception)

static get idColumn(): never {
        throw new Error(`undefined id for ..some.. table`);
}

[salisbury-espinosa]

#2693 (comment)

[geeksilva97]

What would be the purpose of an idColumn gett that throws an exception?

[salisbury-espinosa]

goal - if the table does not have id - it cannot be used in runtime.
this should generate an exception, and not allow further compilation of SQL code.
and using never as a return value for the idColumn function will allow wrapping the code at the static compilation level, any use will generate a compile time error.
details here #2693 (comment)

the very reference to idColumn, when it does not exist, is a code logic error!

and already now if you allow null then there will be an error during the assembly of certain queries!
this will introduce regression into the code base!