Add AI Toolkit and Docker Desktop markdown page to Lesson 3

[Copilot]

This PR adds a new markdown page in Lesson 3 that explains how to run AI models locally using AI Toolkit for Windows and Docker Model Runner. The change includes:

• Created new markdown file 03-CoreGenerativeAITechniques/06-AIToolkitAndDockerModels.md with:

  • Introduction to AI Toolkit for Windows and its key features
  • Introduction to Docker Model Runner and containerized model usage
  • Detailed explanation of the existing sample code in the src directory
  • Step-by-step instructions for running the included Docker model samples
  • Comparison table between AI Toolkit and Docker approaches
  • Links to official documentation and additional resources

• Updated 03-CoreGenerativeAITechniques/readme.md to:

  • Add a bullet point for local model running in the "What you'll learn" section
  • Add a link to the new markdown file in the content sections list

• Updated navigation between lesson pages:

  • Modified ImageGenerationOpenAI.md to link to the new page
  • Set up AIToolkitAndDockerModels.md to link to the Agents page

This change helps users understand how to leverage local models in their applications using either Windows-specific tooling or a platform-agnostic Docker approach, with code samples demonstrating both Semantic Kernel and Microsoft Extensions for AI integration.

Fixes #152.

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

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File Full Path	Issues
02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 160
translations/de/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/pt/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/zh/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/tw/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/fr/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/es/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/ja/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
translations/ko/02-SetupDevEnvironment/getting-started-azure-openai.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/deploy/ 159
03-CoreGenerativeAITechniques/05-ImageGenerationOpenAI.md	# Link Line Number 1 https://learn.microsoft.com/azure/ai-services/openai/concepts/understanding-image-generation-responses 152
03-CoreGenerativeAITechniques/06-AIToolkitAndDockerModels.md	# Link Line Number 1 https://learn.microsoft.com/windows/ai/toolkit/install 28
04-PracticalSamples/readme.md	# Link Line Number 1 https://aka.ms/eshoplite/azureaisearch/repo 245 2 https://aka.ms/eshoplite/AzureAISearch/repo 515