[0.76] Add CLI selection of multiple debug targets

[huntie]

Summary

Note

Depends on #46643.

This is a 0.76 pick (eager) of #46627. We're blocked from landing that PR on main first, as Metro is not yet released targeting main (we're in a temporary state with alpha releases for 0.76).

Introduces a target selection API for launching React Native DevTools when more than one device is connected.

Credit to @robhogan for the initial internal implementation of OpenDebuggerKeyboardHandler!

(This leverages recent additions to Metro's reporter API — which we should follow up on to use for the rest of community-cli-plugin. Notably, using TerminalReporter ensures server output won't conflict with Metro's own event and progress logs.)

Changelog: [Internal]

Test Plan

See next PR.

[react-native-bot]

	Warnings
⚠️	🔒 package.json - Changes were made to package.json. This will require a manual import by a Facebook employee.

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