docs(readme): local network permission for macos and --host params

[sl-gn]

📋 PR Title Format

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type(scope): concise message (max 50 chars)

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• type is one of: feat, fix, docs, refactor, perf, test, chore.
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• fix: Bug fix.
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💡 Description

local network permission for macos and --host params

Key Changes

1. local network permission for macos in readme
2. add --host params to make API accessible from other machine in readme