[Agent] optimize match expression

[xiaoziv]

This PR is for:

Agent

optimize match expression

match components.as_mut() {
  None => {},
  Some(components) => {
    match components {
      Components::Agent(components) => {},
      _ => {},
    }
  }
}

refactor to

match components.as_mut() {
  None => {},
  Some(Components::Agent(components)) => {},
  _ => {},
}

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