boot-device fails on Xcode 27 (replaces Simulator.app with Device Hub)

[etnikbeqiri1]

Problem

boot-device hardcodes open -a Simulator.app and defaults write com.apple.iphonesimulator, both of which fail on Xcode 27 beta because:

1. Xcode 27 removes Simulator.app entirely — it is replaced by Device Hub.app (com.apple.dt.Devices). open -a Simulator.app errors out.
2. Xcode 27 no longer reads the com.apple.iphonesimulator preferences domain. defaults write there is a no-op.
3. SimulatorKit.framework moved from /Applications/Xcode.app/Contents/Developer/Library/PrivateFrameworks/ to /Applications/Xcode.app/Contents/SharedFrameworks/. The prebuilt simulator-server binary crashes at launch because it looks for the framework at the old path.

Steps to reproduce

1. Install Xcode 27 beta (/Applications/Xcode-beta.app/)
2. Run boot-device with any iOS simulator UDID
3. Observe: Simulator.app not found → tool falls through with no UI opened; defaults write silently fails; simulator-server crashes on SimulatorKit resolution

Additional context

Only Xcode 27+ is affected. Xcode 26.x and earlier work fine. The ax-service binary also crashes on iOS 27.0 simulators with -[SimDevice booted]: unrecognized selector (separate issue, not covered here).

Suggested fix direction

• Fall back from open -a Simulator.app to open -b com.apple.dt.Devices when Simulator.app is absent
• Wrap defaults write com.apple.iphonesimulator in a try/catch — it is cosmetic and non-essential
• Auto-create a symlink from the old SimulatorKit path to the new location

[latekvo]

Confirming this on macOS with Xcode 27.0 beta during 0.13.0 pre-release E2E, with a concrete user-facing symptom and a workaround:

With xcode-select pointed at /Applications/Xcode-beta.app, boot-device returns booted: true and describe works (it uses ax-service), but screenshot and every touch/gesture tool fail because simulator-server can't load SimulatorKit:

simulator-server: Error: SimulatorKit could not be loaded (Xcode search path: /Applications/Xcode-beta.app)
Error: Failed to initialize SimulatorControl
Failed to initialize iOS simulator bridge
[registry] serviceError SimulatorServer:...: simulator-server exited with code before becoming ready

Confirmed SimulatorKit.framework is absent from …/Xcode-beta.app/Contents/Developer/Library/PrivateFrameworks/ (present under stable Xcode 26.5), matching point 3 above.

Workaround (unblocks screenshot/gestures without downgrading the default toolchain): start the tool-server with DEVELOPER_DIR pinned to a stable Xcode, e.g.

DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer argent server stop && <run argent normally>

The unhelpful Failed to initialize iOS simulator bridge message would benefit from pointing users here.