Collect evidence while the goprod skills are used and turn it into a sanitized usage report for the goprod maintainer. Two moments — "start goprod usage log" at the beginning of a session creates a local, git-ignored log that every goprod skill appends to after it runs; "write the goprod usage report" at the end turns the log plus the session into a structured report (what each skill produced, what worked, what was bad or strange, the agent's own mistakes, numbers, recommendations), strips confidential data, and shows it for approval before anything is shared. Use whenever the user wants to test, pilot, evaluate, or give feedback on goprod, asks for a usage log or usage r…