feat: ios16 support

[Yash-Singh1]

What Changed

Adds ios 16 support to the GhosttyKit library used in mobile app

Why

So we support ios 16

Checklist

• This PR is small and focused
• I explained what changed and why

---

Note

Medium Risk
Updates the vendored native GhosttyKit.xcframework and its C API surface, which can affect terminal rendering/input behavior on iOS at runtime. Risk is mitigated by minimal Swift-side changes (signature alignment) and added rebuild documentation/script for repeatability.

Overview
Adds iOS 16 support for the mobile terminal by updating the vendored GhosttyKit.xcframework to a new custom-I/O fork/revision and refreshing the shipped headers (ghostty.h) and Vendor/libghostty/VERSION.

Aligns T3TerminalView.swift with the updated Ghostty runtime callback signature (read_clipboard_cb now returns bool) and documents/reprovisions the vendor build via a new scripts/build-libghostty-ios16.sh plus README/third-party notice updates.

Separately pins shiki to 3.23.0 in apps/mobile/package.json (and lockfile) to avoid dependency conflicts with packages expecting different shiki major versions.

^{Reviewed by Cursor Bugbot for commit 40cc9c5. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Add iOS 16 support to the mobile terminal using a custom Ghostty fork

• Updates vendored GhosttyKit.xcframework to a custom-I/O fork of Ghostty with an iOS 16 compatibility patch (revision d36c3b8).
• Adds build-libghostty-ios16.sh, a script to rebuild the xcframework from source using Zig 0.15.2, replacing only the ios-arm64 and ios-arm64-simulator slices.
• Updates T3TerminalView.swift to return false from the read_clipboard_cb closure to match the updated ghostty_runtime_read_clipboard_cb signature (changed from void to bool).
• Adds shiki@3.23.0 as a dependency and updates the lockfile with scoped resolutions to avoid conflicts with packages expecting shiki@4.x.

^{Macroscope summarized 40cc9c5.}

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on this repository. Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: d403649f-1ff3-4347-b16d-cf50a01f4a40

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch yash/ios16-mobile

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[macroscopeapp]

Approvability

Verdict: Needs human review

This PR updates a vendored native iOS library (GhosttyKit) with iOS 16 compatibility patches. Vendored binary updates cannot be fully verified through code review alone, and this enables new platform support, warranting human review.

No code changes detected at 40cc9c5. Prior analysis still applies.

^{You can customize Macroscope's approvability policy. Learn more.}