Include iOS device UDID and simulator-set path in JSON success payloads

[thymikee]

Summary

Please include more target identity fields in successful JSON responses for iOS commands.

Version

• agent-device 0.7.6

Request

For commands like open, appstate, and session/list outputs, include:

• device_udid
• ios_simulator_device_set (when scoped)

Why this matters

In concurrent multi-session runs, this is essential to prove isolation and to debug routing issues quickly without extra host-side simctl calls.

Current workaround

External orchestrator runs separate simctl --set <path> list devices checks to map session -> UDID.