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Add support for scoped API tokens in CLI
This PR adds CLI support for creating and viewing API tokens with scopes and allow lists. It includes:
- New `--scope` and `--allow` flags for the `tokens create` command
- A new `tokens view` command to display detailed information about a token
- Updated table columns in `tokens list` to show scopes and allow list entries
- Updated help text and examples
These changes enable users to create tokens with limited permissions through the CLI, similar to the existing functionality in the web UI.
Thomas Kosiewski