Add support for iOS Simulator (local device) via --local flag

[cpholguera]

Is your feature request related to a problem? Please describe.

objection has no way to attach to apps running in an iOS Simulator. The Simulator is exposed by Frida as a local device (no USB and no frida-server are required) but objection always defaults to device_type='usb'. Running objection -n MASTestApp start against a Simulator process fails with Unable to find a device, even though Frida itself can attach without issue (frida -n MASTestApp works out of the box).

Describe the solution you'd like

A top-level --local / -L flag that tells objection to target the Frida local device instead of a USB or network device:

objection -L -n MASTestApp start

This mirrors the existing --network / -N flag and requires no frida-server on the Simulator or on the host.

Describe alternatives you've considered

Using --serial with the simulator device id: Frida doesn't expose simulator devices that way; they appear only as the single local device.

Additional context

Tested with Frida 17.5.1 and the MASTestApp iOS Simulator target on macOS. frida-ps shows simulator processes alongside native macOS ones when no USB device is connected. The fix is small: a new use_local() connection mode.

[IPMegladon]

Ah yeah I havent used the iOS emulators much before.
Check if #795 works.
I do need to think of how to integrate this with #664 and how to differentiate the environments.