Added "Please read and confirm this document" to resource files and updated resource class. Replaced Envelope constructor with WithDefaultMessage extension method to set default message based on EnvelopeTypeId. Updated controller and editor form to use this method. Cleaned up imports and comments.
Introduce new "4RaC" resource strings for "Read and Confirm" workflow in both English and German resource files, with corresponding C# accessors. Update existing resource values and comments for clarity, remove unused "EnvelopeSaved4RaC" accessor, and ensure consistency across resource entries.
Added DocumentSigned4RaC and EnvelopeSaved4RaC resource strings with English and German translations. Updated Model.en.resx to include PartlySigned translation. Translated all resource accessor class comments from German to English for clarity.
