Report a finished meeting recording for metering [write]

Books one charge for one recording, on the two bases the supplier charges us on. bot_seconds is how long the recorder held a seat — first to last status change, including time spent waiting to be admitted — billed at $1.00 per hour. recorded_seconds is what was actually captured, capture start to capture end, billed at $0.30 per hour; it is not a bot lifetime and not a running total for the meeting. Neither basis is derived from the other and both are required. The 60-second minimum applies to each basis separately, not to their sum. A report naming error_code zeroes the transcription basis but still owes the seat, because the supplier still charged for it; only a booking where neither basis ran costs nothing. The reporting account is the account charged. A recording is identified by meeting_id and bot_id together: reporting it again returns the booked terms with 200 and charges nothing further.