MCP Agent TypeScript Port

# jest-leak-detector Module for verifying whether an object has been garbage collected or not. Internally creates a weak reference to the object, and forces garbage collection to happen. If the reference is gone, it meant no one else was pointing to the object. ## Example ```javascript (async function () { let reference = {}; let isLeaking; const detector = new LeakDetector(reference); // Reference is held in memory. isLeaking = await detector.isLeaking(); console.log(isLeaking); // true // We destroy the only reference to the object. reference = null; // Reference is gone. isLeaking = await detector.isLeaking(); console.log(isLeaking); // false })(); ```