microsoft/sql-server-samples ? reverse-engineered prompt

Build me an official looking sample repository for Azure data and SQL users. I want it to be a place where someone can browse and download example databases and small demo apps for SQL Server, Azure SQL Database, Azure Synapse, and Azure SQL Edge.

Each sample should live in its own folder with a clear README that explains what it demonstrates, what edition or service it needs, and simple steps to run it. Include featured release pages or links for Wide World Importers, AdventureWorks, an In Memory OLTP performance demo, and an IoT Smart Grid demo. Add a visual Northwind database diagram for learners.

Also include basic contribution guidance for people who fork the repo and submit pull requests, a reusable README template for new samples, license and security info, and instructions for cloning only part of the samples folder if the repo is large. Keep it clean and beginner friendly, with Microsoft style wording. Look up current docs online if you need to.