feat(custom-widgets): complete Custom JSX v2 (#6390)

packages/custom-widgets/src/jsx/interpreter-method-context.ts

@@ -0,0 +1,6 @@
+import type { Budget, InterpreterCallback } from "./interpreter-foundation";
+
+export interface InterpreterMethodContext {
+  budget: Budget;
+  runCallback(callback: InterpreterCallback, args: unknown[], depth: number): unknown;
+}