Rooting array buffers

The current GC strategy is to just clear all allocations at the end of each call, but we need to allow the JS ArrayBuffers to hold on to the memory they expose. This likely involves integration into the JS GC to ensure it can become a managed pointer in the engine.

先追蹤目前的 GC 策略，此策略會在每次呼叫結束時清除所有配置，接著檢查 JS GC 和 ArrayBuffer 的所有權路徑。當 JS ArrayBuffers 保留其暴露的記憶體，且整合支援 engine 中的 managed pointer 時，即表示完成。

由索引模型根據 Issue 內容生成。