v2.1.1-rc.1

Pre-release that exercises the automated release pipeline (Docker Hub, NuGet, npm trusted publishing).
No product changes from 2.1.0 — stay on 2.1.0 / latest.

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Docker: docker pull qorstack/report:2.1.1-rc.1 · .NET SDK: dotnet add package Qorstack.Report.Sdk --version 2.1.1-rc.1 · Node SDK: npm i qorstack-report-sdk@2.1.1-rc.1