Improve demo setup guide and enhance mock data backend tests for clar…

…ity and relevance

Merge pull request #21 from jongalloway/copilot/fix-20

🐋 Fix Docker build path in GitHub Actions and add .NET SDK container support

Merge pull request #17 from jongalloway/copilot/fix-16

🚀 Implement comprehensive deployment and containerization strategy

🔧 Second alpha release with CI/CD fixes - improved package validation

🚀 First prerelease of NLWebNet - Alpha version with complete NLWeb pr…

…otocol implementation