[React 19] Get context value in class component constructor

I updated version of react from 18.2.0 to 19.1.0 (@types/react to 19.1.6, @types/react-dom to 19.1.5).

After the update I received several components with such errors:

Argument of type 'typeof SplitCostDialog' is not assignable to parameter of type 'ComponentType<never>'.
  Type 'typeof SplitCostDialog' is not assignable to type 'ComponentClass<never, any>'.
    Target signature provides too few arguments. Expected 2 or more, but got 1.

I found the reason. I use context in class constructor.

export class SplitCostDialog extends React.PureComponent<ISplitCostDialogProps, IState> {
    static contextType = ResourcePlanContext;
    declare context: IResourcePlanContext;

    constructor(props: ISplitCostDialogProps, context: IResourcePlanContext) {
        super(props);

        const { scope, position } = context.modals.splitPositionCost;
        this.state = { form: new SplitCostForm(scope, position) };
    }

    ...

}

How can I use context inside a constructor after updating to version 19?
I didn't find the answer in the guide.

Start with the React 19 upgrade guide linked in the issue and compare it with the reported class-component constructor example. Document how context access in constructors should be handled after the upgrade, including the relevant migration guidance, so the guide answers this case clearly.