Finalize repair list or separate agent vs client copy

Users want to finalize a repair list so clients cannot change the agent’s documented request list, or they want separate views/copies—one for internal or agent use and one for the client—so negotiation stays clear. This goes beyond per-item permissions when a full list must stay fixed for liability.

Why it matters: Prevents clients from removing items the agent intended to stand behind; supports clear records.

Related: Complements ATT-290 when that ships.