Extends lm.inspect_history to print usage and reasoning content

[nguyenhoan1988]

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Enhanced the pretty_print_history function in lm.inspect_history to include:

Usage Details: Prints response usage information when available Reasoning Content: Displays reasoning content from the response message if present.

[arnavsinghvi11]

Hi @nguyenhoan1988 , thanks for the PR! could this instead be supported like how we do image & audio in inspect_history rather than keeping a separate verbose flag? Also, we don't need to introduce new colors - all outputs should be green