Add comprehensive test infrastructure and fix dependency management for sample code validation#1

Copilot wants to merge 6 commits intomainpatniko/llm.lang:mainfrom

copilot/fix-d5f31923-12b2-4519-9838-4ba8676559a0patniko/llm.lang:copilot/fix-d5f31923-12b2-4519-9838-4ba8676559a0Copy head branch name to clipboard