mix dev.ui (nerves_gate_sim v0.1.0)

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Run the gateway UI on the workstation, with code reload, against one device. Simulated and real gateways are selected the same way:

mix dev.ui                               # the only gateway found
mix dev.ui gateway_a                     # a device of the running mix dev simulator
mix dev.ui nerves_gate@100.101.102.103   # a real gateway, e.g. an EC100 on the tailnet
mix dev.ui gateway_a --port 4002

Without a target, the task looks for the simulator's devices and for gateways on the current tailnet, and starts only when it finds exactly one. It reads the local Tailscale daemon without changing it and never starts or stops simulated devices. Real gateways need development firmware with the same cookie.