peacefulstudio/canton-dotnet-sdk: docs/public/proposal-appendix-a-as-shipped.md

# Proposal Appendix A, as shipped The [2026-03 grant proposal](https://github.com/canton-foundation/canton-dev-fund/blob/main/proposals/2026-03-Peaceful%20Studio-csharp-dotnet-sdk.md)'s Appendix A illustrated the developer experience this SDK would deliver, ahead of any of it existing. Some of it un