fix: preserve recursive call result order

[ryanchou1994]

Purpose (TL;DR) - mandatory

Keep return values, exceptions, and call stacks associated with the correct invocation when a spy or fake calls itself recursively. Save each proxy's call index before invoking the wrapped function, including the separate indices of its withArgs matches.

Fixes #1849.

How to verify - mandatory

1. Check out this branch and run npm ci.
2. Run npm run test-node -- --grep "recursive calls" for the seven regression cases.
3. Run npm test, npm run lint, npm run prettier:check, and npm run build.

Verified on macOS with Node 26 and Linux with Node 24: 1,563 Node tests, 1,556 Chrome tests, and the WebWorker test pass. The existing 12 Node / 13 browser pending tests remain pending. Lint, formatting, build, package contract checks, and coverage thresholds also pass.

Checklist for author

• npm run lint passes
• References to standard library functions are cached.

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