iOS Simulator panel attach fails with "No booted simulator found" on Xcode-beta (DeviceHub replaces Simulator.app)

Environment

• macOS 27.0 (26A5378n)
• Xcode 27 beta (27A5218g) — Simulator.app is replaced by DeviceHub.app at

/Applications/Xcode-beta.app/Contents/Applications/DeviceHub.app

• Claude Code 2.1.146
• Runtime: iOS 27.0 (24A5380i)

Repro

1. Boot a sim headlessly (e.g. as build/ship tooling does): xcrun simctl boot <udid>
2. xcrun simctl list devices booted correctly reports the device as (Booted)
3. Call the iOS Simulator tool's attach action

Actual

attach returns "No booted simulator found. Boot one with: xcrun simctl boot <device> — then retry this action." even though the device is genuinely booted.

Investigation

This isn't just "no GUI window open" — I tested that directly:

• simctl boot alone leaves DeviceHub running as a process with zero windows (confirmed via osascript ... tell process "DeviceHub" to count windows → 0).
• Manually running open "/Applications/Xcode-beta.app/Contents/Applications/DeviceHub.app" immediately creates a real, correctly-titled window ("iPhone 17 Pro – iOS 27.0").
• Retried attach after the window existed (with simctl list devices booted still confirming Booted) — still fails with the same error.
• ps aux shows only a DeviceHub process; nothing named Simulator is running anywhere.

This suggests the panel's booted-simulator detection may hardcode a check for the legacy Simulator.app process/bundle id rather than relying on xcrun simctl list devices booted, so it never recognizes a booted device on setups where Xcode-beta has replaced Simulator.app with DeviceHub.app.

Expected

attach should succeed whenever xcrun simctl list devices booted reports a booted device, regardless of whether the controlling GUI process is Simulator.app or DeviceHub.app.