[FEATURE REQUEST] Optionally output trajectory commentary to file in print mode

The trajectory commentary that is output in interactive mode (e.g. " Reading file x", "Thinking about y") is interesting and very helpful in understanding what happened when CC goes off the rails or does something slightly incorrect. But in print mode (-p) this commentary is not provided.

Suggestion: provide a flag (e.g. --trajectory / -t) that takes a file path. CC would then output it's trajectory messages to this file, where the user could review them afterwards (or in real time).

This would be especially useful in case where CC is used in a CI pipeline-like scenario.

P.S. Thanks for the great work on this tool!!