Added `OnlyActive` and `OnlyCompleted` properties to the `ReadEnvelopeQuery` class to enable filtering envelopes by their active or completed status. Updated the `ReadEnvelopeQueryHandler` to apply these filters when the properties are set.
Enhanced the `EnvelopeStatus` class by introducing `Active` and `Completed` status lists and adding extension methods (`IsActive` and `IsCompleted`) to determine status categories. Included necessary `using` directives for `System` and `System.Linq`.
Updated `CreateHistoryCommand.cs` to use the `EnvelopeStatus` enum directly from the `EnvelopeGenerator.Domain.Constants` namespace. Refactored `Constants.cs` to consolidate multiple enums related to statuses, types, and roles. Modified `Fake.cs` to align with the new enum structure and introduced `Value.cs` for better organization of constant string values. Overall, these changes enhance code clarity and maintainability.
