CLI analyze emits MLX deprecation warning in normal output

[simonerom]

Summary

Running trio analyze on Apple Silicon emits a deprecation warning from MLX in normal CLI output.

Reproduction

trio analyze ~/Downloads/photo.jpg -q "What's here?"

Actual behavior

The command succeeds, but the output includes:

mx.metal.device_info is deprecated and will be removed in a future version. Use mx.device_info instead.

Expected behavior

Normal user-facing CLI output should not emit deprecation warnings. The code should use the supported MLX API.

Impact

The command still works, but the warning makes the CLI output look unstable and distracts from the actual result.

Suggested fix

Replace usage of mx.metal.device_info with mx.device_info where applicable.