* Enhance mobile emulator script with --port option and robust IP lookup
Introduce support for configuring the Metro bundler port via --port, and
allow overriding the CLI command name using the ORCA_CLI environment variable.
Additionally, improve LAN IP detection and verification so that Metro URLs
are correctly resolved and tested for reachability. Finally, fix the
worktree argument passed during the emulator attach step.
* Improve mobile emulator script shutdown
Jinjing