Feature: Add `AbortController` support to `bucket.query` / `beginRead`

[AnthonyCvn]

Current problem

Allow cancelling queries and reads with Fetch standard AbortController.

Possible solution

• Accept an optional { signal?: AbortSignal } (either in QueryOptions or as a final arg).
• Propagate signal and abort should close streams/iterators and reject with AbortError.

Additional context

Example:

const ctrl = new AbortController();
for await (const r of bucket.query(name, s, e, { ...opts }, { signal: ctrl.signal })) { ... }
ctrl.abort();

Code of Conduct

• I agree to follow this project's Code of Conduct

[atimin]

@AnthonyCvn wrong project.