Build and publish a SQL database project

This owns the tooling: the project file, the build, the dacpac and the publish. It does not own how to sequence a schema change (schema-migrations-safely), running the publish from a pipeline (github-actions-for-sql), or deploying the application beside it (deploy-app-to-azure). Open sqlpackage-import-export when the job is moving a whole database rather than building one, or when the artifact is a bacpac.

Verified 2026-09-03 with the .NET SDK 8.0.421 on macOS, Microsoft.Build.Sql 2.2.0, Microsoft.Build.Sql.Templates 2.2.0 and SqlPackage 170.4.83.3, publishing into the Azure SQL Database container reporting EngineEdition 5, SQL Azure, 12.0.2000.8.

The build runs anywhere, and SqlPackage is a separate install