fix(gateway): restore lazy import of RedactingFormatter after #7991

[fancydirty]

Add lazy from agent.redact import RedactingFormatter import back to the stderr handler setup block that was orphaned by the component-separated logging refactor.

Fixes #8090

[Copilot]

Pull request overview

Restores a lazy import of RedactingFormatter in gateway.run.start_gateway() to prevent a startup crash introduced by the component-separated logging refactor (#7991), matching the project’s existing lazy-import pattern and fixing #8090.

Changes:

• Reintroduce from agent.redact import RedactingFormatter inside the verbosity is not None stderr-handler setup block.

Comments suppressed due to low confidence (1)

gateway/run.py:8477

• Consider adding a regression test that exercises the verbosity is not None branch of start_gateway() to ensure the stderr handler setup does not raise (e.g., NameError) and that the handler’s formatter is a RedactingFormatter. There are already tests covering other start_gateway() paths, but none validate this verbosity-driven stderr configuration.

    if verbosity is not None:
        from agent.redact import RedactingFormatter
        _stderr_level = {0: logging.WARNING, 1: logging.INFO}.get(verbosity, logging.DEBUG)
        _stderr_handler = logging.StreamHandler()
        _stderr_handler.setLevel(_stderr_level)
        _stderr_handler.setFormatter(RedactingFormatter('%(levelname)s %(name)s: %(message)s'))

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[fancydirty]

Upstream main has already restored the from agent.redact import RedactingFormatter lazy import. This PR is now redundant — closing.