Type Alias TypedTweenTargetInput<C>

TypedTweenTargetInput: {
    [K in keyof C & string]: {
        component: K;
        field: NumericPaths<C[K]>;
        from?: number;
        to: number;
    }
}[keyof C & string]

Discriminated union over component names: each variant constrains field to the numeric paths of that component. TS narrows inline object literals by component discriminant — zero runtime overhead.