SkipWebScrollDelegate callbacks

[tifroz]

Implemented the UIScrollViewDelegate-equivalent for skip-web. See SkipWebScrollDelegate for the shape of the delegate calls

Skip Pull Request Checklist:

• REQUIRED: I have signed the Contributor Agreement
• REQUIRED: I have tested my change locally with swift test
• OPTIONAL: I have tested my change on an iOS simulator or device
• OPTIONAL: I have tested my change on an Android emulator or device

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• AI was used to generate or assist with generating this PR. Please specify below how you used AI to help you, and what steps you have taken to manually verify the changes.
  Codex wrote the code under supervision. Manually tested from a native sandbox app

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Attached: video capture of the test on android

scroll-debug-720p.mp4

[marcprux]

I'd rather keep scripts like this out. You should be able to pre-build the package for iOS just by running skip export --debug, which will validate that the project builds for iOS as well as Android.

[tifroz]

Ah yes, this was accidentally added to the repo. I will remove it & resubmit.

A related question: the purpose of the script is to mirror the CI Action so I can catch possible issues before submitting a PR by running XCTests on a simulator/device (instead of macOS). Does skip export --debug cover this? If so I will throw away the script entirely if can rely on skip export --debug exclusively

[marcprux]

It doesn't run the tests, it just builds against the iOS destination. So you might want to keep the script around somewhere for your own purposes (or else just manually run the test cases from Xcode).

Or just wait and see if CI fails. There's no harm in iterating on a PR after a CI failure 😸

[tifroz]

It took me a few tries, but CI is passing now

[marcprux]

Great contribution, thanks!